Last updated at 06:17
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In pictures: Radio 1's Teen Awards

The Vamps and Shawn Mendes were some of the winners at Radio 1's Teen Awards on Sunday.
Shawn Mendes was the big winner at Sunday's Teen Awards - picking up Best International Solo Artist and Best Single for his song Stitches.
Shawn Mendes
The Vamps won Best British Group, to add to the three Teen Awards they've already won. That's one for each band member!
The Vamps
Dan and Phil won the first award of the afternoon, picking up Best Vlogger.
Dan and Phil
Little Mix performed their number one single Shout Out To My Ex at the award ceremony.
Little MixPA
Paralympic swimmer Ellie Simmonds was one of the star names on the red carpet at the Teen Awards.
Ellie SimmondsPA
Joe Jonas and his DNCE bandmates missed out on an award this time.
DNCEPA