Listen to You're so Vain (From "How to Lose a Guy in 10 Days") online. You're so Vain (From "How to Lose a Guy in 10 Days") is an Unknown language song and is sung by Soundtrack Wonder Band. You're so Vain (From "How to Lose a Guy in 10 Days"), from the album Soft Rock Movie Songs, was released in the year 2015. The duration of the song is 4:26. Download Unknown songs online from JioSaavn.