Justin Bieber Celebrates With Hailey After He Sells Music Catalog For $200M

Justin Bieber‘s feeling himself after selling the rights to his entire library of music for $200 million … and the proof is in the pants.

The Biebs busted out some eye-catching polka dot trousers Tuesday night as he headed out to dinner with wife, Hailey in New York City … fresh off his huge payday.

Justin also rocked a pink jacket, beanie and a pair of black and brown boots …  while Hailey wore a leather jacket and matching vest and heels.

The couple’s got $200 million reasons to enjoy a night out in the Big Apple … earlier in the day, Justin officially sold the rights to his publishing and artist royalties from his song catalog to Hipgnosis Songs Capital.

As we reported … the deal’s been in the works since December and it’s being hailed as the most lucrative music rights sale for any artist from Justin’s generation.

The $200 million pact reportedly covers all 290 songs in Justin’s library released through 2021 … including his latest album, “Justice.”

Something tells us Justin’s picking up the tab tonight.