Vamps, Rixton and 5SOS to play Radio 1 Teen Awards 2014
We already knew thousands of screaming fans will be at the SSE Arena, Wembley on 19 October for Radio 1's Teen Awards, but now we know who they'll be screaming at.
The Vamps, Ariana Grande and 5 Seconds of Summer are all on the line-up, which was announced by DJ Nick Grimshaw.
Ella Henderson, Labrinth and Rixton will also perform at the event.
Now in its fifth year, Radio 1's Teen Awards acknowledges some of the UK's unsung teenage heroes.
As well as the Teen Heroes, other prizes include best British group, best British vlogger, best British actor and best British sports star which will be voted for by Radio 1 listeners.
Breakfast Show host Nick Grimshaw also announced Rita Ora will join him as co-host for the ceremony for the second year running.
Speaking on show, the How We Do singer said: "It's a huge honour to be doing it again."
Radio 1 listeners can nominate anyone aged 12 to 17 years old for the awards in recognition of their bravery, strength and selflessness.
Previous listener nominations have included relatives, work colleagues, friends and carers.
This year, one of last year's Teen Heroes Jeremiah will be on the panel among journalists, celebrities and Radio 1 DJs who will be choosing the winner.
"I'm the first young person on the panel so that's a changer," he told Newsbeat last month.
"I'm literally looking for mind-blowers, something that I can read personally and go 'Wow'."
Tickets for this year's Radio 1 Teen Awards will be available from 6:30pm on Wednesday 1 October.