Diana Ross helping son plan wedding to Ashlee Simpson

Soul legend Diana Ross has turned wedding planner as she helps her son Evan perfect his upcoming nuptials.

The young actor recently proposed to his girlfriend Ashlee Simpson, and he reveals his mom is helping him make the couple's big day extra special.

He explains, "She's involved in all levels of my life. She's one of the most incredible mothers ever. My mom is 69 and she's going on tour again... She's involved in every piece of our wedding."

And he tells PerezHilton.com he and his bride-to-be can't wait to become husband and wife.

He adds, "Honestly, we could go and get married right now, wherever. We just want to be married. We're in love. This is the most incredible time I could ever think of in my life and I'm young, but the same time, I've lived a different life than most and I can't think of a happier moment."

Ross admits he knew he wanted to marry Simpson, who was previously wed to rocker Pete Wentz, as soon as the couple started dating: "I was giving it time only because I wanted to give it time, but I would have asked her a month after I was with her."