The band reached the peak of their mainstream success with their fourth studio album, Mmhmm , in 2004. Debuting at number 15 on the Billboard 200, the album featured a more mature, piano-driven rock sound. Hits like "Be My Escape" and "Who I Am Hates Who I've Been" received heavy rotation on MTV and mainstream radio, eventually achieving Gold certification.
In 2013, the band released Collapsible Lung , an album that divided fans due to its departure from their pop-punk roots in favor of a synth-pop and hip-hop-influenced sound. The album was co-written with several mainstream producers and songwriters. relient k wiki
The band's sophomore album, The Anatomy of the Tongue in Cheek (2001), expanded their sound and earned them a nomination. The quirky single "Sadie Hawkins Dance" became their first crossover radio hit. The band reached the peak of their mainstream