Heidi Klum says stripping off is much easier than singing.
The 48-year-old model has teamed up with rapper Snoop Dogg for her first single, 'Chai Tea With Heidi', but admitted it was completely outside of her comfort zone.
Heidi told The Sun newspaper's Bizarre column: "This is definitely much scarier than showing off my body.
"I've done a bit of singing before -- on 'America's Got Talent' and once in the past with my ex-husband at a show, but putting out my own single is totally out of my comfort zone.
"It started as a theme tune for my show, 'Germany's Next Top Model', but once we got Snoop Dogg involved and pulled it together we thought, 'Why not put it out properly' -- I just love Snoop, I'm a huge fan so I couldn't be more excited.
"It has been the most amazing experience to try something new. I've always liked to push my boundaries and scare myself a bit.
"I've obviously done lots of performances on catwalks, I've shown off my body and done shoots without my clothes on, but this is probably the most daunting thing.
"But I'm very proud of it -- I got in touch with all the people involved and organised it myself, so it feels like all my own hard work has paid off."
And Heidi, who is married to Tokio Hotel guitarist Tom Kaulitz, said she hopes that others will be inspired to strip off or wear revealing clothes, whatever their age.
She explained: "I'll probably still be wearing mini- dresses and revealing outfits in my sixties or more. It's just who I am and I like it -- it makes me feel great, and it's all about being confident.