If you've never heard of Maya Rudolph, you need to look her up. She is from Away We Go with John Krazinski (Jim from the Office) but more commonly known on SNL. She does a really great Tyra impression, as well as Whitney Houston. Here is my favorite clip of her's, singing the national anthem.
I literally was laughing so hard that tears were pouring down my face. If you don't believe me ask Matt...he witnessed it.