Bieber also greeted young fans during the al fresco gig

NEED TO KNOW

Justin Bieber performed an impromptu jam session at MacArthur Park in Los Angeles on Sept. 22, playing drums and singing several of his hits

The singer interacted with fans, sweetly complimenting a young boy and encouraging him to join the music session

Justin and his wife Hailey Bieber, who share son Jack Blues, 2, prioritize keeping his identity private, sharing only photos taken from behind

Justin Bieber turned a Los Angeles park into a surprise stage on Tuesday, Sept. 22.

The “Baby” singer was captured by TikTok user @SONYGT05 sitting on the grass at MacArthur Park in Los…

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