Puddle of Mudd frontman Wes Scantlin really stepped in it this time -- he's been charged with felony cocaine possession stemming from his recent arrest ... TMZ has learned.

As we first reported, the singer was busted back in January after cops pulled Scantlin over and found him in possession of a controlled substance, which at the time cops only ascertained to be some kind of powder and pills.

But mystery solved ... because when the Los Angeles District Attorney's Office filed their complaint, they named cocaine as that substance. There was no mention of the pills.

In addition to the felony charge, Scantlin was also charged with two misdemeanors -- being under the influence of a controlled substance and driving without a license.

If convicted on all charges, Scantlin could face 4.5 years in jail. He's already pled not guilty and is due back in court later this week.

We're still not sure which members of Guns N' Roses will be at the Rock and Roll Hall of Fame induction ceremony on April 14th, but we now know that they'll be ushered in by the members of Green Day. Billie Joe Armstrong is no stranger to the black-tie bash: He did the honors when The Stooges were inducted two years ago, and the whole band performed in honor of The Ramones, who entered the Hall in 2002.

10 Years have announced that their new album, Minus the Machine, will be released on July 17th on their own Palehorse Records. The band will kick off a headline tour June 27th in New Orleans that runs through July 21st in Chicago.

Mastodon have a new live video for "Dry Bone Valley" on YouTube.