Back of Ashlee and Pete Hit Vegas Where Bronx Takes the Cake Ashlee Simpson helped throw Pete Wentz a lavish birthday party in Vegas on Saturday night after the couple celebrated with her family in LA the night before. Bronx stayed home in California while mom and dad headed to the Bank nightclub at the Bellagio, but he still got to be a part of the sweet celebration in a photo on the 30th birthday cake. The next morning Pete and Ashlee were headed back to LA for the A Time For Heroes celebrity charity carnival, where they brought their little man Bronx along to enjoy the sights. Flynet, Splash News Online, and WireImage View 10 Photos › Photo 1 Photo 2 Photo 3 Photo 4 Photo 5 To see more of Pete and Ashlee in Vegas, just . View 10 Photos › Photo 1 Photo 2 Photo 3 Photo 4 Photo 5 Photo 6 Photo 7 Photo 8 Photo 9 Photo 10 Comments nu4u 8 years she looks really bad in those pictures...hahahaha jaan_black 8 years that looks like the most boring Vegas party ever ilanac13 8 years well it's nice that they got to hang out together for his birthday. sometimes i wonder why celebs make such a big deal about going to vegas for their birthdays - but oh well. ...as long as they are happy. daise 8 years Frank y Ava - I was thinking the exact same thing!! Classy..... spicyaroma 8 years 30?? He behaves like an immature 17 year old. I noticed that as well Fran y Ava, kinda odd if you ask me :shrug: Frank-y-Ava 8 years Why did they use a paparazzi pic for the birthday cake? tuscanstellina 8 years He might be 30 now, but he acts like he is 20. There is something strangely creepy about that man. michaeluvnikita 8 years douche and douchette manakineko 8 years he is so gross. Is that supposed to be some kind of tie?