Mel C has admitted it was "emotional" to team up again with Spice Girls band-mate Emma Bunton on her new solo album.
Known as Sporty Spice, Melanie Chisholm met fans and signed copies of her sixth solo album in Glasgow.
Stages is a collection of show tune covers, inspired by her time spent watching productions in the West End and later starring in two.
Mel C appeared in Blood Brothers in 2009 and she plays Mary Magdalene in Andrew Lloyd Webber's Jesus Christ Superstar, which is on tour now.
Tracks from both shows are included on the album: I Don't Know How to Love Him from Jesus Christ Superstar and Tell Me It's Not True from Blood Brothers.
While working on the album, she was reunited with "Baby Spice" Emma, who features on the track I Know Him So Well, from Chess.
"It was so lovely to work with Emma again, we're still really good friends and we socialise a lot together," Mel said.
"Occasionally we have the opportunity to work together, but recording was something we hadn't done for a very long time, and hearing our voices together is really emotional and I'm really happy with how the song sounds."
At the signing at hmv in Glasgow today, Mel had a surprise visit from her Jesus Christ Superstar co-star, former Radio 1 DJ Chris Moyles. The pair will be on stage at the SECC tonight, with Chris starring as King Herod.
Stages is said to feature a collection of songs from the theatre that have been important to the pop star at various stages of her life and was recorded with collaborator Peter-John Vettese.
"I did my first theatre role in 2009 in Blood Brothers on the West End, and while I was in that show it really reminded me of the love I have for musical theatre," she said.