Former “American Idol” contestant Randy Madden is dealing with some severe expenses … he is been arrested for allegedly having intercourse with somebody who’s underage … TMZ has discovered.

Madden, who appeared on Season 8 of the singing competitors present, is dealing with six felony expenses … together with oral copulation of an individual beneath 18 and illegal sexual activity.

He is additionally charged with anal and genital penetration by international object, sending dangerous matter, luring, and dissuading a witness from reporting a criminal offense.

It is unclear how previous the alleged sufferer is. Madden is 45.

Court docket paperwork present the costs stem from at the very least one alleged sexual encounter between July and September of this yr… he was charged Monday, pleaded not responsible to all counts and was taken into custody.

Court docket officers inform us Madden posted $100,000 bond Tuesday morning, and was launched from jail.

‘Idol’ followers may bear in mind Madden from Season 8, when he auditioned in Phoenix, and sang “Livin’ On a Prayer” by Bon Jovi. All 4 judges gave Madden a “No” vote, nonetheless, and he was eradicated from competitors.

We have tried to contact Madden for remark, however he is but to reply.