Are The Vamps Friends with R5?

We were so excited to see R5 linking up with The Vamps backstage in London. But we were even more "amped" to see them rocking out onstage together! That's right- during R5's concert, these two crazy talented bands joined forces for an epic cover of OneRepublic's "Counting Stars." And judging from their tweets, they're looking forward to working together more in the future! "Freaking awesome having @TheVampsBand joining us onstage," wrote R5. And The Vamps' Tristan tweeted, "was great to meet you at last! Such a talented band, can't wait to hangout more." Neither can we!