One source claims the 18-year-old was actually bullied for being there -- apparently not everyone thought she earned the right to walk the shows!
The insider spilled:
Pop music is back!!! And we LOVE it!!!!
Perez had a blast at KIIS FM's big summer concert, Wango Tango, on Saturday. And he served up some stylish summer festival attire!
We're so happy it's summer concert-going season!!!!
[Images via WENN.]