Penyanyi Madonna (kiri) dan Taylor Swift tampil di panggung ajang iHeartRadio Music Awards di Los Angeles, California, 29 Maret 2015. Mereka berduet membawakan lagu "Ghost Town". Kevin Mazur/Getty Images for iHeartMedia

Aksi panggung Madonna (kiri) dan Taylor Swift di panggung iHeartRadio Music Awards di Los Angeles, California, 29 Maret 2015. Kevin Mazur/Getty Images for iHeartMedia

Taylor Swift memainkan gitarnya saat berduet dengan Madonna di ajang iHeartRadio Music Awards, Los Angeles, California, 29 Maret 2015. Taylor meraih tiga penghargaan dalam ajang ini, Artist of the year, Song of the year, dan Best lyrics. Kevin Winter/Getty Images for iHeartMedia

Madonna membawakan lagu "Ghost Town" di panggung iHeartRadio Music Awards, Los Angeles, California, 29 Maret 2015. Kevin Winter/Getty Images for iHeartMedia

Duet Madonna dan Taylor Swiift membawakan lagu "Ghost Town" di panggung iHeartRadio Music Awards, Los Angeles, California, 29 Maret 2015. Kevin Winter/Getty Images for iHeartMedia

Madonna mencium Taylor Swift usai penampilan duet mereka di panggung iHeartRadio Music Awards, Los Angeles, California, 29 Maret 2015. Kevin Winter/Getty Images for iHeartMedia