If you didn’t think the Kings of Leon were becoming mainstream think again.

The Followill boys have been confirmed as performers for this year’s ‘MTV Movie Awards‘.

The band are set to perform their latest single ‘Use Somebody‘, which is off their latest album ‘Only By The Night‘, at the awards show.

The ‘2009 MTV Movie Awards‘ will air Sunday, May 31 at 9:00 p.m. (live ET/tape delayed PT).