Stars Surprise Their Fans

The fun didn't end with the surprise concert—Nicole and Avril both came to The Oprah Show! Avril also brought Nicole a personalized gift—a signed, acoustic guitar.

What was it like for Nicole to have her dream come true? "Oh, my gosh...I had no idea what was going on," Nicole says, "and when I walked up on that stage, I couldn't hear anything. And I saw Avril come out and I just started crying. I couldn't say anything. I was amazed."

"It was so cool for me to be able to do that, you know, to be able to use what I do, singing, to build up," Avril says. "That makes me happy."