Because he wants to look good for the live shows in his brand new Varvatos threads he bought and he hates how his gunt hangs over his pants. He said he really likes the clothes so thats why he purchases them with his own money rather than having AGT dress him with their budget. Also, he only eats a serving spoon of pasta for dinner even though he really wants to dive into the enitre bowl. I think he needs to start booking double sessions with his shrink or re read Sarno's cure all book. He is clearly fucked up in the head.