mallcore

noun2

1. •
   (slang, disapproving) Popular music that is overproduced, mainstream, corporately controlled, etc., as opposed to popular music that is independent or artistic.

   • […]a time when the hardcore scene badly needs to overthrow the mallcore bands, the naughty yet non-threatening pop punk groups who wear their tattoos like designer labels instead of inner scars. — 2004
2. •
   (informal, disapproving) nu metal.