Which pop star released the album 'Rebel Heart' in 2015?

Madonna released the album Rebel Heart in 2015.

Rebel Heart is Madonna’s thirteenth studio album and was released by Interscope Records on 6 March 2015. She recorded it during 2014 while working with a wide group of collaborators, including Diplo, Avicii, Kanye West, Mike Dean, and Sophie. The album combines mainstream pop with elements of house, trap, reggae, acoustic music, and gospel.

Its themes reflect two sides of Madonna’s public and personal identity: romantic introspection and defiant self-expression. Songs such as “Living for Love,” “Ghosttown,” and “Bitch I’m Madonna” helped define the record’s varied sound. The album received generally positive reviews and reached number one in several countries.

A notable part of its story was an extensive leak of unfinished recordings in late 2014. Madonna responded by releasing six completed tracks early as part of a digital pre-order, before the full album arrived in 2015. The album later inspired the Rebel Heart Tour, which ran from 2015 into 2016.