Which Oscar Winner Did Jennifer Lopez Sing With at the Oscars?

To celebrate “American Idol's” top 12, the judges stepped out to the "American Idol XIV" Finalist Party on Wednesday.

Judge Jennifer Lopez stole the spotlight in a Marchesa Notte mini dress and talked to “Extra's” Renee Bargh all about sitting next to Meryl Streep at The Oscars.

J.Lo gushed, “It was so fun. It was like a dream for me. I was like, 'I'm in the front row at the Oscars, and here's Meryl Streep, and there's Julianne Moore!'”

Lopez revealed she and Streep even sang together. “We sang when the 'Sound of Music' thing was going on, before Lady Gaga came out. They ran the movie a little bit, and I started singing and she started harmonizing with me and I was like 'Oh My God!'… I should have recorded that. I missed a moment!”

Lopez recently posted a picture of her with ex-husband Marc Anthony and their twins, Max and Emme, at their 7th birthday party, proving exes can be amicable in Hollywood. “We try, you know nobody's perfect but we do our best.”