Dancing with the Stars winner (and two-tim Indy 500 winner) Helio Castroneves if facing prison time if convicted at a tax evasion trial that started today.

Prosecutors say that Helio Castroneves (as well as his business-manager sister Katiucia and attorney Alan R. Miller) conspired to hide about $5.5 million in income form the IRS in offshore accounts.

If convicted of conspiracy and tax evasion, Helio Castroneves, 33, could get more than six years in prison.