I hadn't paid attention to Weird Al since the 90s until his Mandatory Fun album in 2014. He has SERIOUSLY improved since his early years. It used to be that his songs were mostly to annoy you and make fun of real songs. Now his songs are actually really enjoyable to listen to while providing amusing nutty lyrics. Also he's started doing "Style Parodies" where he makes a completely new song in the style of some artist and sounds so good it really could be one of theirs.
Weird Al - Mandatory Fun
Mission Statement (in the style of Crosby Stills & Nash)
With My Own Eyes (in the style of Foo Fighters)
So after listening to these, I went out and downloaded the whole discography of Crosby Stills & Nash (& Young) and a dozen hours later concluded that I actually liked Weird Al's song better. It took all the good music elements from their entire discography and condensed it into one song.
Meanwhile, I'm really digging the Foo Fighters song too. (and I'm really saddened that nobody made an AMV out of it yet) And I sent it to a friend of mine, who happens to hate Foo Fighters and he was like "Ugh, this sounds just like Foo Fighters. I can't listen to this." So there you have it, Weird Al successfully stealing other people's sound and not having to pay them royalties because he wrote an original :-)
Oh, and I always love his parodies of the videos:
Pharrell Williams - Happy
Weird Al - Tacky