Mick Jagger reportedly spent a weekend with a mystery brunette he met in a nightclub.

The Rolling Stones musician, 70, was in Zurich, Switzerland with the band last weekend.

In photographs obtained by UK newspaper The Sun, Mick is spotted with the young woman on the balcony of his penthouse hotel last Saturday and Sunday.

In one of the pictures, the girl is seen leaning over to kiss him on the head. They are seen several times on the balcony over two days, wearing different clothes.

Mick lost his partner L’Wren Scott in March, but the outlet says this is evidence he is moving on.

“He’s worked very hard to get the Stones back on the road,” a source said. “He’s a single man and he’s Mick and he’s having some fun. No one has a clue who this girl is — not even the security people.”

The band played a concert in Zurich on Sunday and apparently spent four days in the city. Mick reportedly spent most of that time “holed up” in the hotel with the mystery girl.

“There were more costume changes than a Cher concert,” one observer noted, while another said, “It was just nice to see Mick smiling again. Zurich is beautiful and he was obviously enjoying what the city has to offer.”

The Stones cancelled gigs in Australia and new Zealand to allow Mick time to grieve for L’Wren, but the tour resumed 12 days ago.

Mick, Keith Richards, 70, Ronnie Wood, 67, and Charlie Watts, 73, are set to perform at the Pinkpop Festival in Holland on Saturday night.