The first song I fell in love with
When I learned to drive and got my first car, I felt this real freedom. I'd put the windows down, blare out Ghetto Supastar (That Is What You Are) by Pras, featuring Ol' Dirty Bastard and Mýa, and sing at the top of my lungs.

The first single I bought
Every Friday night we'd go to the roller skating rink, and I couldn't wait for them to play Kokomo by the Beach Boys, from the Cocktail soundtrack. So I bought it on cassette from Best Buy in Warrensburg, Missouri.

The song I do at karaoke
I Wanna Dance With Somebody (Who Loves Me) by Whitney Houston. It's a classic – everybody joins in, so you know you're in for a good time.

The song I can no longer listen to
I'm completely over Gangnam Style by Psy. Everybody was doing the dance and singing it. My kids certainly overdid it in my house. Now I feel a sensory overload the moment I hear it.

The song I inexplicably know every lyric to
I DJ loads and always play I Love It by Icona Pop, featuring Charli xcx. Everybody in the audience loves it and together we sing every word.

The best song to have sex to
The Bad Touch by Bloodhound Gang.

The song that changed my life
Freedom Dance (Get Free!) by Vanessa Williams was the music for my first dance competition as a soloist for the Junior Miss Dance of America when I was 14. I only entered for the experience and to learn, but I ended up winning. It sparked a real belief in myself. I was contestant number 12, so 12 has remained my lucky number ever since.

The song that gets me up in the morning
I've got three kids, so I have to get up super-early to make snacks and breakfast, and get everybody changed and out of the house. I need an anthem to push me through and get me to the gym afterwards, so Lose Yourself by Eminem.

The song that makes me cry
My eight-year-old daughter Maple does dance competitions to Human by Christina Perri – which is about being brilliant, but you're only human so you can only go so far. She reminds me so much of myself when she's on stage. To see that little human go up and do superhuman things – but tell the world that she's got her limits too, and that's OK – makes me cry.

The song I'd like played at my funeral
I walked down the aisle to Beneath Your Beautiful by Labrinth, featuring Emeli Sandé. It's my anthem, so I'll have it when I say goodbye, too.

The Pussycat Dolls tour the UK and Ireland 29 September to 13 October; tour starts Birmingham.