Twas a Duets reunion Monday night!
Kelly Clarkson was pumping the Hollywood Bowl UP with her powerhouse performances, but she really made the crowd go wild when she brought John Legend on stage!
Everyone was so surprised when her co-judge started singing with our Idol lass.
Feel bad cuz you missed out? No worries, we have the performances for you! Catch You Don't Know Me (above) and Don't You Wanna Stay …AFTER THE JUMP!
Tags: dont you wanna stay, hollywood bowl, john legend, kelly clarkson, you dont know me