Literalisms today, using song titles. As Neville mentioned, I've seen this sort of concept enough times to recognize immediately what was going on, so I really appreciated that he went above and beyond with his consistency and tightness. During my solve, I noticed every level of self-imposed constraints he pointed out. Very nice touch.
Even though I wasn't familiar with all the songs — I didn't totally recognize ROLLING in the DEEP and DANCING in the DARK — I did like Neville's thinking about "something for everyone," trying to broaden the spectrum of solvers that will appreciate the puzzle. He's a strong enough constructor that I had a feeling this was part of his thought process. Nice to hear from him that it indeed was.

Some excellent bonuses too, FOUND MONEY the standout. Who doesn't like reaching into a pair of shorts you haven't washed in eight months to find a $20 bill?
What, you wash your shorts more than every eight months? Me too. Ahem.
Neville is recent math Ph.D. graduate (congrats!), so it was fun to see the clue for AUNT. At first, I couldn't remember what PEMDAS was a mnemonic for but it came back quickly: parentheses, exponents, multiplication, division, addition, subtraction. Good to remember in case you have to solve some math formulas involving a mix of multiplication, subtraction, exponents, natural logs, factorials, second-order derivatives … (I just felt a bunch of you shudder)
AL OERTER is an interesting piece of fill. I learned him from crosswords, as that TER ending and those juicy vowels makes OERTER very useful for six-letter slots. But what a cool piece of trivia — amazing feat to win four consecutive gold medals!
I had to look up AXE and [Chopper], as I just couldn't believe they were synonymous. Were they new slang I'm not cool enough to know? (An AXE is slang for a guitar, and a chopper is slang for a certain type of motorcycle.) I felt pretty silly when I realized [Chopper] just meant "thing that chops." (groan)
Nice clean grid, really just the arbitrary time ONE PM and a MULTI prefix. Well-executed puzzle overall.