Mama Jonas Blue feat. William Singe
Watch the band perform a cover of Maroon 5's No. 1 hit for Capital FM.
Andy, Adam, Joel and Ryan performed the cover version as part of an exclusive live session for CapitalFM.com.
You can download 'When She Was Mine', the boy's latest single from iTunes now.
Take a look at Lawson's cover of Maroon 5's 'Move Like Jagger' and let us know what you think below...