I'll try and pick one from varied genres (just to give a sample, but my music taste too varied to list them all).

Reggae: One Love (Bob Marley)

Classic Rock: Stairway to Heaven (Led Zeppelin)

Miscellaneous (Or Post Hardcore Rock to be more specific): Try Honesty Or Devil in a Midnight Mass or The Ex (Billy Talent...I swear they are all tied! lol)

Country: Its your Love (Faith Hill & Tim McGraw)

Hip Hop: The name of my Band (D12)

Heavy Metal: Hells Bells (AC/DC)

Love song: Lady (Kenny Rogers)

Alternative: Bring me to Life (Evanescence)

Pop: No one (Alicia Keys)

Dance: Beautiful girls (Sean Kingston)

Classical: The Great Gate of Kiev (Mussorgsky) or Swan lake (Tchaikovsky)

Folk: Irish Rover (the Dubliners)

French: Helene (Rock Voisine) 

Arabic:  ANYTHING by Fairuz!

Stay safe all.

Perfection does not exist. The question therefore, is: what level of imperfection are we willing to settle for?