Complex sentence: On February 23,2010, it was announced that Bristol Palin would be playing herself at a music program for teen mothers on an episode to air on July 5,2010.
Split into simpler sentences: On February 23,2010, it was announced that Bristol Palin would be making an appearance on the show. She would be playing herself at a music program for teen mothers on an episode to air on July 5,2010.