"All About That Bass" is the debut single by American singer-songwriter Meghan Trainor, released on June 30, 2014, through Epic Records. The song was included on Trainor's first EP, Title (2014), and first major-label studio album, also named Title (2015). It was written by Trainor and Kevin Kadish, and was produced by Kadish. "All About That Bass" combines bubblegum pop, doo-wop and retro-R&B genres, and incorporates elements from 1960s music. Lyrically, Trainor intended the song to promote positive body image and self-acceptance. The song was noted for discussing "booty" as part of physical attractiveness. Critical reaction to "All About That Bass" was mixed: some publications named it one of the best songs of 2014, while others called it a novelty song and opined that it failed to promote positive body image as it intended to. The song was nominated for Record of the Year and Song of the Year at the 57th Annual Grammy Awards. In the US, "All About That Bass" spent eight weeks atop the Billboard Hot 100 and was certified diamond by the Recording Industry Association of America (RIAA). It also topped the charts in various countries including Australia, Canada, and the UK, and was the fourth best-selling song of 2014 with sales of 11 million copies worldwide. Fatima Robinson directed the accompanying music video for "All About That Bass", which was released on June 10, 2014. Featuring 1950s-inspired aesthetics, particularly a pink pastel backdrop, the video played an important role in the song's rise to prominence. The song inspired various parodies and cover versions, including covers from Canadian singer Justin Bieber and former Pentatonix member Avi Kaplan. Contemporary publications such as Vogue felt that "All About That Bass" was influential to the "Era of the Big Booty", when women deemed prominent buttocks attractive. Trainor performed the song on various shows including The X Factor UK and the Jingle Ball Tour 2014 and included it on the That Bass, MTrain and The Untouchable Tour set lists.