‘She Wants To Be Thinner Than Bella!'

The singer’s going to extreme and dangerous lengths to compete with her man’s ex!

Selena Gomez has long been vocal about embracing the curvy look, but as she attended the LA premiere of 13 Reasons Why – the Netflix series she executive produced – on March 30, the singer drew sideways glances thanks to her noticeably thinner frame. “Her waist is tiny,” said one attendee. “She even seemed to be having trouble keeping her dress up, because she’d lost so much weight around her chest.”