Mario is in the clear. After the singer’s mother claimed that he assaulted her last month, she’s changing her tune, saying he didn’t actually lay a finger on her and was on drugs when she reported the incident to the police.

Shawntia Hardaway, who previously battled a heroin addiction, took the stand yesterday and declared she was under the influence when she accused her son of pushing her against a wall and breaking objects in their Baltimore home.

The 2nd degree assault charge against Mario has been dropped, the Baltimore state attorney’s office told TMZ.

“I’m glad to be finally vindicated,” the 24-year-old tells UsMagazine.com. “I want to thank everyone who believed in me. I will continue to love and support my mother.”

The “Let Me Love You” hitmaker is back in the studio working on a new album for 2011 and will release a mixtape within the next month.