What makes you like a song?

TESTER: Before we begin the product testing, let me ask: what makes you like a song? GREG: Like, you know, if it was on Gossip Girl.
TESTER: OK, well... let's say you hear a really good song that hasn't been on Gossip Girl, and- GREG: But... if it's really good, it WOULD be on Gossip Girl.
TESTER: OK, but this one isn't. GREG: But... why?
TESTER: Wait, was Gossip Girl canceled?! Is there somewhere I can check Twitter here?! GREG: OK, let's... let's move on...