Justin Bieber and Ludacris have brought the 2010 Baby era back, briefly, for the Super Bowl party.

On Saturday, February 7, the rapper invited Bieber on the stage at the pre-Super Bowl party thrown at the Cow Palace in San Francisco, 16 years after their smash hit.

"Make some noise for my brother Justin Bieber," Ludacris announced to the chanting and screaming crowd of VIP partygoers. "Make some f---ing noise," the rapper added.

Before starting Baby, Ludacris Ludacris told the crowd that Justin Bieber was in attendance and dedicated the song to him. The rapper performed the track solo, backed by Bieber’s recorded vocals.

Ludacris then challenged the audience to join in on his featured rap verse, if they could recall the lyrics from the back half of the pop hit.

When the song ended, Bieber climbed onto the stage, scaling barricades to share a warm hug with the rapper.

“Careful, be careful!” Ludacris cautioned into the mic as Bieber made his way over the gates.

Among the star-studded audience was Hailey Bieber. She was spotted arriving at the Cow Palace. The couple bypassed the red carpet, entering through the back, with friends, including Michael Rubin, around 11:30 p.m. PST.