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Jessica Simpson got an early start to celebrating her 28th birthday, which officially falls on Thursday. According to Us Weekly, the blonde bombshell was joined Monday night by friends and family, including her football beau Tony Romo, her sister Ashlee Simpson and her new hubby Pete Wentz, for dinner at Sagebrush Cantina in Calabasas, CA.

After being serenaded by a cover band that was playing at the restaurant, Jessica and Tony headed to Key Club in West Hollywood, where Tony hopped on stage and sang the Guns n' Roses hit "Sweet Child O' Mine" to the birthday girl.