Doo-Wops & Hooligans is the debut studio album by American singer-songwriter Bruno Mars, released on October 4, 2010. Mars' writing and production team The Smeezingtons were credited with writing all songs and serve as the album's executive producers. The album's title refers to doo-wop music and was chosen to reflect simplicity, as well as appeal to both males and females. Two digital singles—"Liquor Store Blues" featuring Damian Marley and "Grenade"—were released to promote the album. Lead single "Just the Way You Are" was released on July 19, 2010, and topped the Billboard Hot 100 for four consecutive weeks, going on to become an international top ten hit. "Grenade" was later announced as the second single, and has charted in the top ten in Australia, Canada, New Zealand, as well as becoming his second consecutive number one in the US and UK. "The Lazy Song" was released as the third official single from the album in Spring 2011, peaking at #4 on the Hot 100 and becoming his third consecutive number one single in the UK as a solo artist. Doo-Wops & Hooligans charted at number three on the Billboard 200 and in the top ten of music charts in Australia, Canada, Ireland, and New Zealand. The album received generally mixed to positive reviews from music critics. The usage of a wide variety of influences was noted by critics, with musical comparisons made to Michael Jackson, Jason Mraz and Little Richard. The album received a total of seven nominations for the Grammy Awards in 2011 and 2012 including Album of the Year and Best Pop Vocal Album. Mars embarked on a US headlining tour throughout November and December 2010 to promote the album. Doo-Wops & Hooligans was announced the third biggest-selling album of 2011 in the UK, selling approximately 1,214,420 copies. The album has sold over 6 million copies worldwide.