Original: Knowles often performs the song live as a prelude to "Crazy in Love", and more recently with her live cover of Jill Scott's 2000 song "He Loves Me (Lyzel in E Flat)" on her Beyoncé Experience tour.
Simplified: Knowles frequently performs the song live - often as a prelude to "Crazy in Love", and more recently with her live cover of the Jill Scott song "He Loves Me" - often to show her vocal power and range.