So much for taking it easy.

Miley Cyrus is already back to her partying ways just weeks after she was released from the hospital following an allergic reaction to antibiotics.

Miley Cyrus has harsh words for her driver before returning to Claridge’s hotel.Splash News

The 21-year-old was photographed returning to Claridge’s hotel in London after partying into Friday’s early hours.

Wearing a bra and glittery leggings, the “Wrecking Ball” singer was spotted with supermodel Kate Moss, 40, earlier at Madame Jojo’s nightclub in SoHo, according to TMZ.

But by the end of the night, it was clear the pop star needed some rest, as she looked tired and flustered while getting into an apparent argument with her driver upon returning to her hotel.

Cyrus resumed touring earlier this week. After taking a few weeks off from her “Bangerz” world tour, she was forced to address rumors surrounding her hospitalization.

“I didn’t have a drug overdose. I took some s——y antibiotics that a doctor gave me for a sinus infection and I had a reaction,” she told People.