Ashlee Simpson and Pete Wentz Wed!

The couple got married on Saturday in L.A. It's a marriage made in music heaven: Singer ASHLEE SIMPSON and her FALL OUT BOY fiance PETE WENTZ have tied the knot, People reports. The cute couple exchanged vows and "I do's" at the Simpson family home in L.A. on Saturday.

About 150 guests, including big sis' JESSICA SIMPSON and her date TONY ROMO, reportedly attended the private affair -- a whimsical, fantasy themed celebration held underneath fashionable tents.

NICOLE RICHIE and JOEL MADDEN -- who reportedly took part in Friday night's wedding rehearsal dinner -- were expected at the nuptials, as were Pete's Fall Out Boy bandmates.