John Legend got onstage with 50 Cent to do his best version of Nate Dogg — and while he certainly dished his own twist … not everybody’s feeling it, and they’re letting him know too.
The singer celebrated his 45th birthday Thursday in NYC — where he and Chrissy Teigen hired Fitty to perform, with the rapper doing his classic “21 Questions” live in front of a crowd. At first, it was just 50 Cent handling the hook and verses … but JL eventually jumped in.

Very impromptu, John grabbed the mic from 50 and started belting out the chorus … singing, “Girrrrl, you seem to love me now // Would you love me if I was down and out.”
Looks like John kept singing while 50 continued to rap — and in the moment, everyone seemed to receive it pretty well … cheering on the bday boy and giving him props.

