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 his 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 catalogue to Hipgnosis Songs Capital.