Viveca Paulin performed Free Bird at the end of the final show , along with Conan , Billy Gibbons , Beck , Ben Harper and Max Weinberg and The Tonight Show Band .
Paulin played the character Dawn , the wife of Ferrell 's rock 'n ' roll persona , as they performed Free Bird with Conan , Billy Gibbons , Beck , Ben Harper and Max Weinberg and The Tonight Show Band to end the final show.
Viveca Paulin