Mary J. Blige joins Taylor Swift on stage...

Taylor's impact is quite something. Special guest Mary J. Blige joined Taylor Swift at her '1989' world tour live show on Saturday night (August 22nd). They both sang Mary's hits, 'Doubt' and 'Family Affair,' at Staples Center in Los Angeles.

The Queen of Hip Hop Soul showed up and showed out! I know a lot can happen over a career spanning 20 years. We've seen Mary work and duet with just about everyone from all genres of music but this is as random as it gets. Check out some performance footage inside.

Thoughts?