Pete Davidson's Not Blue Anymore Except for His Hair

Pete Davidson's got bright days ahead.

The 'SNL' star headed into the weekend with an updated shade of blue -- sky blue we're thinkin'. A colorist named Aura at Sally Hershberger Salon took due credit, saying, "Had the pleasure of doing this funny guy's hair."

Ariana's ex donned a similar shade during a promo for this weekend's 'SNL' ... asking musical guest Maggie Rogers if she wanted to get married. That backfired quickly.