Mike Bruno
February 01, 2010 AT 12:31 PM EST

Whoa, does Jay-Z have a kid? Well, if he does, it wasn’t the little rugrat he was sitting with at the Grammys last night. The boy Jay and Rihanna referred to as “Julez” while accepting the Best Rap/Sung Collaboration Grammy (see clip below) is Daniel Julez Smith, Beyonce‘s sister Solange Knowles’ 5-year-old son. So the kid in the “super fresh” tuxedo and Nike Dunks is Jay’s nephew, not his son. Jay and B are private, but that would’ve been a fairly massive secret for them to have kept so long . (Because they’re so private, wasn’t it kinda cool to hear Beyonce tell her husband “I love you” in her acceptance speech for Best Female Vocal Performance? Also cool: Replaying it on my DVR and pretending she was talking to me.) My wife thought little Julez looked a lot like Mos Def, probably influenced a bit by the fact that he was just on-screen presenting the award.

“No THANKS.” Wow, cute and polite. Nice work, Solange.

So honestly, who wondered if that was Jay-Z’s kid last night?

Be sure to head over to EW’s Music Mix blog for full coverage of the 2010 Grammy Awards.

More Grammy Awards 2010:

Taylor Swift wins Album of the Year: Did the Grammys get it right?

Lady Gaga and Elton John’s Grammys duet: Did you think they were on fire?

Grammy Awards 2010: The winners list

Grammy Performances: We Grade ‘Em!

Grammys style: Rate 21 looks!

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