as i can remember and no order

• respect, mercedes (s01e01)
• don't stop believin', new directions (s01e01)
• this is how we do it, acafellas (s01e03)
• bust your windows, mercedes and cheerios (s01e03)
• single ladies, kurt and brittany and tina (s01e04)
• tonight, tina (s01e04)