A. R. Rahman revealed his inclusion in the debut film of Arif Ali in early 2014.[5] The first track "Khalifa" was written and composed in a single night, a result of the team's jamming sessions. The film's producer stated, "Khalifa was composed during the first recording session that we had with Rahman Sir. The track just came together with a life of its own and it sets the tone of the album." A discotheque cum party song, "Khalifa" translates to "leader" in English and the overall lyrical content represents— "The daredevil attitude of today's youth." The track was extensively programmed with electronic music base.[6] Singer Mahesh Vinayakram has performed the Konnakol—an Indian form of vocal percussion in the song. Singer Shweta Pandit and Suzanne D'Mello have performed opening lines as a "rap" in Hindi.[7] It was the former's first attempt to rap, diversifying her usual styles of singing. On the composition Rahman explained that he didn't wanted to do a regular club song. Lyricist Amitabh Bhattacharya, producer Dinesh Vijan and director Arif Ali were on board the flight to Chennai.[7] The producer started playing the musical patches Arif Ali had taken from A. R. Rahman.[7] He stated to Ali that the hook words "Nainon Se, Nainon Se" might work as a party number.[7] However, it was the lyricist who was struck with the hook word "Khalifa".[7] In an interview with Mumbai Mirror Rahman stated, "I liked the word Khalifa. There's a popular American rapper by the name too. The word's significance in the religious context dates back to a 1000 years, but it is also used today by the younger generation as a synonym for 'Hey Chief',".[7] He added that he was supposed to sing "Alaahda" song but the team convinced him to record "Khalifa". The song was recorded at the end, just two days prior to its promotional release.[7] On this development, Arif Ali quoted, "'Khalifa' took off a year after it was first planned. It is not a usual Rahman song yet I was confident it would work. But with all the music that is happening, I was not surprised that it took time to pick up. But as it is usual with Rahman sir, we recorded "Beqasoor", a song we were in no hurry for, first while this one kept getting pushed."[7] Both the songs "Mawali Qawwali" with "Khalifa" were featured in the theatrical trailer of the film.[8] The song [3] received positive[9] reception upon release.
The track "Beqasoor" was recorded in a hotel room in Singapore when she was on board with Rahman's Infinite Love Concert[10] in Singapore.[11] According to Rahman, the hook line of the track "Tu Shining" was inspired from an e-mail sent to him by Danny Boyle post their successes of 127 Hours.[12] The last lines of the e-mail were "Shine like a diamond". Using these lines in the year span of 2011-2012 Rahman had composed a patch tune. In 2013, when the requirement of a song that began with "Tu Shining", during the recording session for the film the patch tune was approved by Ali. "Tu Shining" was a suggestive by Hriday Gattani whereas lyricist Amitabh Bhattacharya worked on the complete lyrics of the energetic[13] track. Later, Hriday was also offered the free-spirited[13] song "Maaloom" with Jonita Gandhi.[13]
Release
The video teaser of "Khalifa" sung by A. R. Rahman was released on 28 May 2014, and the single was released on 30 May 2014. The teaser of song "Maaloom" was released on 5 June 2014, and the full song was released the next day.[14][4] The full songs were released on 13 June 2014.[15]
The soundtrack album received mixed critical reception. Anish Mohanty of Planet Bollywood gave a positive review of the album praising all the songs in it. Behindwoods gave the album a rating of 3.25 / 5.0 and the verdict was Light, bright and lively!,Devesh Sharma of Filmfare gave the album 2 out of 5 and wrote, "Rahman sure keeps an ear to the ground and knows what today's youngsters are listening to. He's given them the best of the both worlds by peppering a Hindi film OST with strains of world music and EDM."[19] At the Indian Express, Suanshu Khurana who assigned the album just one star stated, "A R Rahman fails to recreate magic with Lekar Hum Deewana Dil. One of Rahman's most scattered albums. Ever."[20] Critical review board of Behindwoods quoted the album as– "Light, bright and lively !". At MusicAloud the soundtrack scores 8 (out of 10), the critic writes, "In a year (2014) that has seen A R Rahman in splendid form, Lekar Hum Deewana Dil is definitely a blip. But it does have some lovely music to offer."[21] Joginder Tuteja for Rediff gave the album 3 stars out of 5 and mentioned, "Though not memorable, Lekar Hum Deewana Dil can't be dismissed either."[22] Aishwarya for Koimoi assigned 3.5 (out of 5) and noted, "Being refreshingly innovative with the electronic sound base and Amitabh Bhattacharya's penmanship, this album is a relief from the stale churnings that Bollywood have recently seen in the name of item numbers being the USP for albums."[23]Time Out magazine gave the album 3.5 stars (out of 5) and noted, "The latest Rahman album is a bit of a letdown".[24] Pavan Jha of BBC Radio gave the album an average of 2.5 to 3 on a scale of 5 and stated that overall, the album falls short of expectations especially after Rahman's Hindi release Highway[25] Rajiv Vijayakar of Bollywood Hungama assigned the album 2 stars (out of 5) and noted, "Taken by that exalted yardstick, Armaan Jain, Kapoor's grandson, gets the weakest musical debut. The music is intended to be cool and youthful, but frankly we see only a microcosm of GenY taking to it."[26]
Background score
Madhureeta Mukherjee for The Economic Times said, "Few of the songs (AR Rahman) stand out."[27]Rajeev Masand who compared the film as partial downgraded form of 2002 film Saathiya stated, "A. R. Rahman has come up with a lesser soundtrack than the one he composed then."[28] Blessy Chettiar for Deccan Chronicle notes, "A.R. Rahman associated with the original score, the score and songs are expected great, but that remains undistinguished like the film."[29] At the India-West critic R. M. Vijayakar criticised the songs and score stating, "A.R. Rahman's score has little purpose and is devoid of melody, meaning or substance, and Amitabh Bhattacharya is at his worst in his lyrics as well – sample meaningless words, especially the offensive "Mawwaali Qawwaali", which is an item song on an almost naked dancer when the word “Qawwali” actually stands for devotional Muslim music!"[30] Sneha May Francis of Emirates 24/7 summarized, "Melodies tuned by music maestro A R Rahman, you can't help but ignore the similarity with Imtiaz’s own Rockstar."[31] Anupriya Kumar for Reuters noted, "A.R. Rahman's score is uneven but dazzles at times – Khalifa works perfectly as the movie's peppy opening number, and if you could look past its bizarre picturisation, Mawwali Qawwali lends the film its most energetic minutes."[32] Anuj Kumar for The Hindu stated, "Composer A. R. Rahman is unusually off colour in the film to help the cause."[33] Shubhra Gupta for The Indian Express wondered the on the inclusion of A. R. Rahman's for the score of this film, calling the fact 'unbelievable'.[34] At Koimoi, critic Manohar Basu felt that A. R. Rahman's score is heart-breaking, forgettable, mediocre and shockingly bad.[35] Anindita Dev for Zee News wrote, "The music given by the maestro AR Rahman also loses its charm in the plot. Though his previous Hindi outing Highway had some great background score, score of Lekar Hum... fails to impress the audience.[36] Rohit Khilnani for Headlines Today pointed out, "A R Rahman is not as melodious and below average just like the film."[37] Soumya Srivastava for Hindustan Times said, "AR Rahman's score fails to deliver anything exceptional. "Khalifa" song is perhaps the only stand out, but the rest of the soundtrack is nowhere near what one expects from the maestro."[38] At Mumbai Mirror, Saumil Gandhi figured out, "There are too many songs with too little diversity in the music on display, a problem that even A R Rahman's score cannot solve."[39]