The Late Show with Stephen Colbert, Mini Puzzle 4

Titanic, and the like

Rap legend whose stage name starts with a numeral

Stephen Colbert: "Yesterday, the US surpassed 9 million total coronavirus infections. Another sad milestone to add to the 2020 list, alongside most sourdough eaten, and longest duration between ___."

DeVito of It's Always Sunny in Philadelphia

Very hot water

Rds.

"Wha?"

The first ones held as little as 5 GB (is that even a whole song!?)

Mess with, as a cat might

Movie part

Single-stranded genetic material

An emoji, e.g.