The Season 4 winner of So You Think You Can Dance might end up showing his moves in a prison yard, as felony and misdemeanor charges were filed against him today by Los Angeles County District Attorney. If Joshua Allen is found guilty of attacks on his girlfriend on April 13 and June 19, he could face more than 10 years in California prison.

Allen is scheduled to be arraigned today in L.A Superior Court on the domestic violence charges. He “faces two felony counts of willfully injuring a girlfriend after a prior conviction and one felony count of assault with a deadly weapon, a glass vase,” D.A. Jackie Lacey’s office said Thursday. The 2008 winner of Fox’s SYTYCD also is charged with two misdemeanor counts for disobeying a domestic relations criminal protective order with his girlfriend. The 27-year-old also has misdemeanor charges of simple battery and vandalism under $400 looming over him.

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Allen, who also was in 2010’s Step Up 3D and the 2011 Footloose remake, had a January 13 conviction of “willfully injuring a girlfriend” – which is where the protective order came from. He then is alleged to have tried to strangle his estranged girlfriend this spring. Last month, according to today’s filing, he attacked her again and reportedly chased her into a coffee shop, where he got into altercations with bystanders who tried to intervene. That’s where that glass vase comes in, as he threw it at one of them. Allen was later “subdued by other good Samaritans,” says the D.A.’s office.

Later today, prosecutors are going to ask for $270,000 in bail in the case, which is still under investigation by the LAPD.

SYTYCD is currently in its 13th season, known as So You Think You Can Dance: The Next Generation.