MP3 Player... Hmmm

I have 59 songs on my playlist. Of those songs only 2 are by the band TLC (Unpretty and Damaged in case you care). I have the playlist set to randomize. I listen to about 20 minutes at a time (except at the gym) on my travels about town. How is it then I get a TLC song every single time I'm listening? This morning I got both in a row. What are the odds of this?