The trailer of actors Aftab Shivdasani and Tusshar Kapoor's upcoming porn-com "Kyaa Kool Hain Hum 3" has crossed five million viewers on video-sharing site YouTube in just four days since its release.

The film, which is the third part in the `Kyaa Kool Hain Hum` series, also stars Mandana Karimi, Krushna Abhishek, Gizele Thakral and Claudia Ciesla in pivotal roles.

Aftab took to Twitter on Sunday to thank all for giving rave reviews to the film's trailer.

`#KyaaKoolHainHum3 trailer has crossed five Million views in just four days! Thank you all! Keep the love coming! @TusshKapoor @balajimotionpic,` he tweeted.

Tusshar, who has two back-to-back releases in "Kyaa Kool Hain Hum 3" and "Mastizaade" -- both sex comedies, also posted on the micro-blogging site: `Keep the fire burning!`

Produced by Ekta Kapoor, "Kyaa Kool Hain Hum 3" is directed by Umesh Ghadge and will release on January 22, next year.