Singing live certainly didn't spare Jessica Simpson 's younger, sibling from the wrath of the 72,000 at the packed US Orange Bowl on Tuesday night.



In a performance preserved for all eternity on the Internet, and broadcast by ABC during halftime of the national championship-determining college football game, a strutting Simpson belted, some say screeched, her Autobiography tune "La La", and at the conclusion of the number, the crown jeered, and booed.



And it wasn't just Orange Bowl attendees whose ears were offended by Simpson's routine.



In a commentary on MSNBC.com, Michael Ventre wrote that Simpson's singing "sounded like a cross between a political prisoner being tortured and a test of the Emergency Broadcast System."



Sound issues on the telecast marred half-time numbers by American Idol's Kelly Clarkson and country singer Trace Adkins, but neither of those performances inspired the booing that Ashlee recieved.



In a bit of bad timing, tickets went on sale on Wednesday for Simpson live shows in Boston, Philadelphia and Nashville. Ashlee is hitting the road, starting Febuary 18th, and the tour coincides with the second-season launch of her MTV series The Ashlee Simpson Show.



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