The B-Side of "Sunny Girl" was a cover of the Beach Boys "Hawaii", which was recorded as a joke (in similar fashion to that of their debut single "Kana Kapila"). A reversed single sleeve which by accident meant that "Hawaii" became the A-side was released. This release managed to actually chart on Kvällstoppen before being recalled. It entered the chart on 15 March 1966 at number 15 before reaching its peak of number 7 the following week. It exited that same date after only two weeks on the chart. Reception and legacy Upon British release, the single gained favorable reviews. In a review for Record Mirror, Norman Jopling and Peter Jones considered the song "open", noting the harpsichord found on the song. However, they also found the song unoccupied. In retrospect, Benny Andersson has stated that the writing of "Sunny Girl" made him physically feel good inside, and made him believe in himself as a serious songwriter after it reached number 1 on Tio i Topp. Realizing that it had reached number 1, he started crying. On a bench in a dressing room in Kungsbacka, Andersson decided to dedicate his life to songwriting after this. He has stated that the feeling of physical gratification has been achieved every time he writes a song, ever since "Sunny Girl". Andersson stated that "Sunny Girl" was the first song which he wrote that he considered good, as opposed to "No Response" which he considered throwaway. In a review for his Andersson's 2017 solo album Piano, Jens Peterson of Aftonbladet writes that "Sunny Girl" easily could have been included on the album as it fits right in with the moody, baroque melodies present on the album. "Sunny Girl" caused a resurgence in Hep Stars popularity, gaining them their first number 1 since "Bald Headed Woman", and led the following singles "Wedding", "Consolation" and "Malaika" to also reach number 1. However, Andersson has stated that he was not satisfied with the lyrics, which he comprehends as misogynic. Nonetheless, "Sunny Girl" became a huge hit, and is together with "Cadillac" and "I Natt Jag Drömde" considered to be Hep Stars signature songs. Svenne Hedlund, Hep Stars frontman and lead singer, has on multiple occasions stated that "Sunny Girl" was his favorite recording by Hep Stars. Although not released on the original version, "Sunny Girl" was issued on the 1996 remaster of their eponymous second studio album