Listen to I Just Don't Know What to Do With Myself (From "My Best Friend's Wedding") online. I Just Don't Know What to Do With Myself (From "My Best Friend's Wedding") is an Unknown language song and is sung by TMC Movie Tunez. I Just Don't Know What to Do With Myself (From "My Best Friend's Wedding"), from the album Best Moments of Song, Lip Sync & Karaoke from the Movies, was released in the year 2014. The duration of the song is 2:51. Download Unknown songs online from JioSaavn.