Meryl Streep and Cher kiss at Mamma Mia! Here We Go Again premiere

Cher and Meryl Streep at the "Mamma Mia! Here We Go Again" world premiere at the Eventim Apollo, Hammersmith on July 16, 2018 in London, England. (Stuart C. Wilson/Getty for Universal Pictures)

They may be on-screen mother and daughter, but Meryl Streep and Cher were getting very close at the premiere of Mamma Mia! Here We Go Again.

Cher makes her debut in the ABBA musical film sequel as Ruby Sheridan, the mother of Streep’s character. the original film’s protagonist Donna.

Cher and Meryl Streep (Stuart C. Wilson/Getty for Universal Pictures)

But the two stars were both on hand at the film’s premiere at the Eventim Apollo in Hammersmith, London last night.

Posing together on the red carpet, Streep gave the gay icon a peck on the cheek – before Cher reciprocated with a kiss on the lips.

Cher and Meryl Streep (Stuart C. Wilson/Getty for Universal Pictures)

Elsewhere, Cher revealed that she is not quite done with ABBA yet.

Speaking to Today‘s Kathie Lee Gifford , the star revealed that her cover of “Fernando” for the film will not be her only ABBA-related track to look forward to.

She revealed: “After I did “Fernando”, I thought it would really be fun to do an album of ABBA songs… so I did!”

Speaking about the album, she teased: “It’s not what you think of when you think ABBA, ’cause I did it in a different way.”

Cher and Meryl Streep (Stuart C. Wilson/Getty for Universal Pictures)

It’s not clear when the album is set to drop but fans are thrilled with the news.

It will be Cher’s first full album since 2013’s Closer to the Truth, which spawned singles “Woman’s World” and “I Hope You Find It”.

Cher (Brook Mitchell/Getty)

It was announced earlier this year that all four members of ABBA – Agnetha Fältskog, Björn Ulvaeus, Benny Andersson, and Anni-Frid Lyngstad – have reunited to record two new songs.

One of the new songs, “I Still Have Faith in You”, will be heard for the first time in a TV special in December.

The band said: “We all felt that, after some 35 years, it could be fun to join forces again and go into the recording studio.

“So we did. And it was like time had stood still and we had only been away on a short holiday.

“It resulted in two new songs and one of them I Still Have Faith In You will be performed by our digital selves in a TV special produced by NBC and the BBC aimed for broadcasting in December.

“We may have come of age, but the song is new. And it feels good.”

During their eleven-year career, the group sold almost 400 million singles and albums around the world.

“Dancing Queen” and “Fernando” are their biggest-selling songs worldwide.

The band decided to call it quits in 1983.

They had a tumultuous time personally while they were an active group.

Both Agnetha and Bjorn and Anni-Frid and Benny married and divorced each other during the lifespan of the group’s success.