Much of the material for Leader of the Pack such as "Bull Dog" and "It's Easier to Cry" emphasized their new style. Other songs on the album include cover versions of "Maybe" originally by the Chantels with Betty Weiss on lead vocals, along with "Shout" by the Isley Brothers and "Twist and Shout" by the Top Notes.[1] Also on the album is "Give Him a Great Big Kiss" which the Shangri-Las had released as a single in December 1964.[3] Although the group had scored two major hits, the album only charted at 109 on the U.S. albums chart.
In a contemporary review, Record Mirror wrote that Leader of the Pack was "one of the most interesting albums we've heard for a long time" and that it "proves that the girls CAN sing well without seagulls or motorcycles" (a reference to the sounds heard on their first two hit singles).[5] In 2017, it was rated the 49th best album of the 1960s by Pitchfork.[6] In 2024, it was ranked 247th best album of all time by Paste magazine.[7]