Celebrity Jessica Simpson 'Really' Loves 'All That Jazz' The singer has stepped out to see sister Ashlee in Chicago five times – and counting! By Aaron Parsley Aaron Parsley Aaron Parsley has been a part of PEOPLE's digital team for more than 15 years. People Editorial Guidelines Published on December 30, 2009 09:15 AM Share Tweet Pin Email Photo: Startraks Photo; Splash News Online; INF Jessica Simpson is certainly a supportive sister. But she must be a big fan of Broadway’s “Razzle Dazzle” as well: Simpson has stepped out to see sister Ashlee in Chicago no less than five times in a month! Jessica first attended the show on Nov. 30, which was Ashlee’s Broadway debut, at the Ambassador Theatre in New York City. “Roxie was all Heart!” Jessica tweeted of her sister’s performance as Roxie Hart. “Watching her up on that grandiose stage made me the proudest sister in the world. I love ya honey, I love ya!. Grrrrrrr” The next night, Dec. 1, Jessica was back again, tweeting this time: “Night #2 ? I’m so proud!! Butterflies all over again!!!” And after taking a night off, it seems Jessica went through withdrawal because she returned to see Chicago on Dec. 3 and Dec. 4. And on Dec. 23, she was back! The first time, however, that Simpson saw her sister in Chicago was on Sept. 25, 2006, when Ashlee appeared in a West End production of the show in London.