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Justin Bieber brought back the song that made him famous during a stop in Berlin this week.

Appearing at the Universal Inside 2015 conference in Germany, the young singer took to the stage with Bryan Adams and hearkened way back in time, with Ludacris on hand to perform the rap verse from "Baby."

Adams manned guitar and joined Bieber for the famous chorus.

"Baby," of course, wasn’t just Bieber’s first hit. It was one of the most popular songs in the history of the universe. Case in point:

The "Baby" music video became the first video ever amass one billion views on VEVO. Yes, ONE BILLION.

Justin will release a new album on November 13 and can only pray one of those tracks is even half as successful as this one.

Watch him deliver a fun, unexpected performance of it here.