In the Glee episode 'Laryngitis', Sue Sylvester admits to enjoying Kurt's performance of John Mellencamp's 'Pink Houses'.
In the Glee episode 'Laryngitis', Kurt is forced to perform a solo in the school musical when Rachel loses her voice. He chooses to perform John Mellencamp's 'Pink Houses'. Although his performance is initially met with criticism, Sue Sylvester eventually admits to enjoying it. She even goes so far as to compliment Kurt on his singing and dancing.