Those people sing happy birthday songs.

Here are some happy birthday songs sung by men: 1. Happy birthday to you-this song is the most classic happy birthday song, which is sung by many men and women. 2. Birthday-sung by American singer Katy Perry. 3. "22 years old"-sung by American singer Taylor Swift. 4. Birthday Sex-sung by American singer Jeremy. 5. Birthday Song-sung by American rappers 2 Chainz and Kanye West***. 6. This is My Party-sung by American female singer lesley gore. 7. "Celebration"-sung by American band Kool The Gang.