First song/song lyrics that come to your mind when you think of the following:

Friends: "Oh, you make me smile." Smile, Uncle Kracker

Boyfriends/Girlfriends: "It's 2AM, feeling like you just lost a friend. No, it's never simple, never easy. Never a clean break." Breathe, Taylor Swift and Colbie Callait

Faith: "And I will go through the valley if you want me to." If You Want Me To, Ginny Owens

Love: If I Have Not Love, Matt Redman

Success: I Made It, Kevin Rudolf