We're coming to the end of the live semi-finals on Britain's Got Talent now, but we got a whole lot of variety in last night's show! And again, last year's winners Collabro are on hand to give us their verdict - this time, it's the turn of Thomas Redgrave.

He knows exactly what it's like to be on the show, which might help when Collabro return to perform tonight. "I don't know if some of the other boys are nervous but either it hasn't hit me yet or I'm not feeling too bad!" he joked. "I think it's going to be fun actually to go back and be on that stage again and perform in front of all the judges. It will be very nostalgic. I think it's more than nerves - it's very prideful to be going back as the winners. I'm really looking forward to it - I'm just going to enjoy it.