Bieber sent the message Wednesday afternoon, writing, "Aaron Carter i had your album when I was little," adding, "And bumped the song Aaron's party."
But then Biebs added a little bit of shade, explaining, "I was like 7. if you need a hype man I got you."
Earlier in the week Carter responded to a fan roasting him for not reaching the levels of success that Bieber has achieved. Carter said, "I've had harder times and always bounce back. No I'm not Justin Bieber I'm Aaron Carter," adding, "I paved the way."