What are your favorite songs that mention the word "hello" in the title or lyrics?

Name one song or moar.

BQ1: What's your favorite way of saying "hello"?
BQ2: Now playing?
BQ3: How are you today? :)
Update: I'm doing okay, thanks. :)
Update 2: And no TDs coming from me, just so everyone knows. But I'm sure most of you are already aware by now. lol
Update 3: @Lalala girl.: Err... You know I misspelled that on purpose, right?
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