See Glee's New Rivals
Check out The Troubletones' debut performance, a mash up of Adele's 'Rumour Has It' and 'Someone Like You' from her album 21 (the biggest selling album in the world this year) on Vevo.com.
The performance also marks Glee's 300th musical performance. "Rumour Has It/Someone Like You" will be available on iTunes 11/15. Watch it here