Ryan Seacrest may not be single for long!

The sexy American Idol host stopped by Chelsea Lately to discuss everything from his diet to possibly walking down the aisle with girlfriend of three years Julianne Hough.

Seacrest, who says Hough is "the best part of every day," told host Chelsea Handler, "She's so beautiful...stunning. She is phenomenal."

When Handler asked when Ryan is tying the knot, the 38-year-old KIIS-FM host said, "She'll be the first one to know. Well, when are you getting married?"

Chelsea's response ..."I'm not going to get married, Ryan. I'm not interested in that. I don't have to prove to people that I'm straight."