"I will certainly be grabbing a glass of champagne!" Wilson told PEOPLE as she made her way into the cast after party at The Gate lounge. "I'm just happy that I sang everything that I was suppose to and feel very good that I didn't mess up my lines."
In preparation for her opening night, Wilson, 39, received some very important advice. "My 10-year-old daughter [Joy] said, 'Mom just don't mess up,' " said the three-time Emmy nominee. "That was the advice she gave me and so that's what I took with me on stage and it seemed to have worked."
Rooting SectionThough her three children, including Serena, 15, Michael, 3 were not able to see mom on stage, in the audience at the Ambassador Theatre Wilson had her Grey's costars: James Pickens, Sara Ramirez and T.R. Knight with boyfriend Mark Cornelsen, all loudly cheering and applauding.
"I talked with them during intermission on the phone and right before the show. They said you know what to do, you will be fine and that we are so proud of you," said Wilson about her children.
As for reaction from her costars, "She was absolutely amazing," Pickens told PEOPLE. "She was perfect and should be very proud of her performance. I had a great time watching her."
"I paid them lots of money for them to do [the cheering]," Wilson said with a smile. "I'm absolutely thankful they came out. We all try to support each other as much as humanly possible so to have them out there and have friends out there felt really good."
"I'm still a little bit nervous like the show is still going on. But I can't wait to do it all over again."