It is their first charting single, peaking at number ten on the Billboard Hot 100. Internationally, "Shake It" peaked within the top ten of the charts in Australia, Canada, the Republic of Ireland, the United Kingdom, Japan, Austria, Germany and New Zealand. The single was certified Gold by the RIAA on June 13, 2008 and later Platinum that year, until finally reaching 2x Platinum status at the end of January 2009. Metro Station appeared on TRL after the success of the song, serving milkshakes to the members of the crowd outside who could 'shake it' the best.
The music video for the song "Shake It" was inspired by fans who created their own versions of the video, 63 of which the band posted as a playlist on their YouTube account. The band has commented that the final product was based on the cult film The Warriors, with rival dance crews in place of gangs. The video features the four band members as they enter a theatre. Once inside the theatre, they perform the song while various dancers compete against each other around them. Cameos are made by online celebrity Jeffree Star and vocalist/guitarist Trace Cyrus' ex-girlfriend Hanna Beth as audience members watching the dancers perform. The video ends with the police entering the theatre and forcing everyone out.