These Stars Celebrate National Underwear Day All Year Long was originally published on globalgrind.com

1. Ciara’s underwear pic is classic.

Ciara’s underwear pic is classic.

2. Iggy Azalea gave us a peek.

Iggy Azalea gave us a peek.

3. There’s nothing hotter than Rihanna in her undies.

There’s nothing hotter than Rihanna in her undies.

4. Kendall Jenner looks perfect in her Calvins.

Kendall Jenner looks perfect in her Calvins.

5. Trey Songz loves an underwear bathroom selfie just like the rest of us.

Trey Songz loves an underwear bathroom selfie just like the rest of us.

6. When is Justin Bieber not in his underwear?

When is Justin Bieber not in his underwear?
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