Jessica Simpson, Eric Johnson New York holding hands

Jessica Simpson performed at the Rockefeller Center Tree Lighting ceremony in NYC last night, and after belting out "I'll Be Home For Christmas," she chatted with reporters about her recent engagement and wedding rumors.

"We have not started any [wedding] planning," Jessica told Us Weekly. "I'm trying to get through all this promotion ... Who knows what will happen? I personally have no idea! I have not set a date and I can't even think about putting together table settings at the moment ... I'm just gonna enjoy the engagement and we'll get married the moment we feel like it."

Click the video below to check out Jessica's performance!