Pop fans turned up at Wembley stadium in London to see the return of The Wanted's Nathan Sykes.
The five band members were re-united for the first time since Sykes underwent surgery in April for an operation on his worn out vocal chords.
SOUNDBITE: Nathan Sykes, The Wanted, saying (English)
"I was like, you know what?, let's just go for it, it's Wembley. If it goes wrong it goes terribly wrong but if it goes well you might look decent."
South Korea internet sensation, Psy fulfilled a lifetime goal with his performance.
SOUNDBITE: Psy, rapper, saying (English):
"My life time heroes were and are Queen. So, you know my first, you know live performance video footage ever, that I experienced was you know Queen at Wembley Stadium '86 so what can I say."
British singer Olly Murs and Justin Timberlake also performed with former Take That star, Robbie Williams closing the show.
The Wanted reunite at Wembley stadium (0:57)
June 10 - Some of music's biggest stars perform at the Summertime Ball in London. Alicia Powell reports. ( Transcript )