Pink was inspired by Las Vegas to write "Walk of Shame."

The 33-year-old singer was prompted to write a song about people making their way home in the previous night's clothes following a night of revelry after a phone call from her husband, Carey Hart while he was in the American gambling capital.

"I remember him calling me from the diner in the Hard Rock, because he has business in the Hard Rock [hotel], at eight o'clock in the morning. And he was narrating for me the continuous walk of shame he'd see out of the casino, because that's just a constant in Vegas. Can you imagine being a diner employee in the mornings and the s**t you'd get to see? The shame walk back to your cab, and I just think it's funny 'cos we've all done it, and I just thought it'd be a hilarious video. It's nothing really that deep, just the regret the morning after."

The "Blow Me (One Last Kiss)" star said she had trouble starting her latest record because her life had changed so much with the birth of her daughter Willow Sage, now 15 months. However, once she came up with the title track of the album, The Truth About Love, she knew it was going to work. She explained to music streaming service Spotify, "I kept telling everyone this is an experiment, I'm a mum, I have no idea what I have to say, I don't even know if I can sing any more or if I want to, and when that song happened I was like 'maybe this isn't an experiment' and I kind of hit my groove."