Pete Wentz and Ashlee Simpson will be married later this evening and a star-studded guestlist, including Fergie, Joel Madden and Nicole Richie, have already begun arriving for the evening nups at the Encino, California estate of Simpson family patriarch Joe Simpson. Also in attendance, are Ash’s older sis’ Jessica Simpson, who was accompanied by reported former BF Tony Romo, OK! Magazine reports.

Tony and Jess arrived together in The Dukes of Hazzard star’s Range Rover, the celebrity weekly claims.