In today's Viral Video of the Day, two sisters gave their dad a private concert he certainly won't be forgetting anytime soon – whether he wants to or not.

In the clip, the girls approach their dad and loudly serenade him with Michael Jackson's song I'll Be There, showing off their genuinely impressive voices while deliberately cranking up the volume – and the dramatics!

Their dad, meanwhile, seems completely stoic through the performance, only moving a bit to the music as his daughters sing their hearts out just inches away from him.

The sisters jokingly captioned the hilarious moment, "He really enjoys it!!! Promiseeee."

"All this talent in the hands of jesters," one viewer joked, while another wrote, "Just obnoxiously talented."

Check it out:

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