"Thunder" is the third single taken from Boys Like Girls' eponymous debut album. This song was released as an acoustic version first, before it appeared on the band's first album, and over 2 years before the song's official single release. It impacted to radio on May 6, 2008. The band first posted the radio remix of the song on their Myspace profile on March 11, 2008. It was the first song Boys Like Girls ever wrote and was written about Martin's high school sweetheart. Despite its poor performance in charts compared to their previous singles, it was certified Gold by RIAA the same week "Hero/Heroine" went Gold.