Radio 1 Teen Awards recognises heroes at Wembley Arena Khloe, 17, collected her Teen Hero Award from Professor Green The 2013 BBC Radio 1 Teen Awards have taken place at Wembley Arena. The event, now in its fourth year, celebrates the achievements of inspirational teenagers as well giving awards to stars from the world of music, sport and entertainment. This year's three heroes were Khole, 17, Jeremiah, 14, and Alexander, 13. They were nominated by friends and family and then chosen by a panel of celebrities, journalists and Radio 1 staff. Jeremiah (right) was given his award for helping people affected by gun crime The event also gives prizes to musicians as well as stars of film and TV. One Direction picked up two awards for best British group and best British single for Best Song Ever. Maisie Williams won the best British actor prize, best British sports start went to Andy Murray and Union J picked up the best British breakthrough act. Taylor Swift (right) joined Fearne Cotton to give out best British TV show award There were special guests on hand to give out some of the awards. Taylor Swift joined Fearne Cotton on stage to present the best British TV show award, which went to Doctor Who. The Vamps also helped Radio 1's Dan and Phil hand over the best British vlogger prize to Zoella. Olly Murs beat the likes of Ellie Goulding and Calvin Harris to pick up the best British solo artist. The winners were voted for by Radio 1 listeners. Tinie Tempah performed at the event at Wembley Arena There were also performances from Jessie J, Rizzle Kicks, Icona Pop and James Arthur during the show. But last year's X Factor winner said the screams were so loud that he couldn't hear himself singing as he performed his latest single You're Nobody Until Somebody Loves You. He said: "I was probably out of tune for like three quarters of the song but I managed to get back in (tune) right at the end. It's pretty embarrassing because I literally could not hear a thing. It's like the loudest room ever. Jessie J said: "12-year-olds and up have very high decibels in their screams. My in-ears guy was talking to me in my ears, just going 'I'm going to push you up a little bit so you can hear yourself,' but no. It was crazy, it's amazing. All the sound was going down my mic. American rock group Fall Out Boy also played and Tinie Tempah brought the event to a close. Radio 1 Breakfast Show presenter Nick Grimshaw hosted the ceremony alongside Rita Ora.