Mumford & Sons: Grammys 2013 Performance of 'I Will Wait' - Watch Now!
The 26-year-old entertainer and his group mates, Ben Lovett, Winston Marshall, and Ted Dwayne, belted out the number to the screaming crowd – at one point during the performance, Taylor Swift was spotted singing along!
Unfortunately, the guys lost out the Best Rock Performance award to The Black Keys, but are still up for Album of the Year!
Check out the performance below!
FYI: Marcus is wearing Levi’s jeans.