During such a tough moment in his life, Louis Tomlinson came through BIG time.
Ch-ch-check out the full thing (below):
[Image via YouTube.]
Ladies and gentlemen, we have a new favorite couple!
The two were spotted kissing and canoodling on set in between takes.
Ariana looks like she's savoring the moment!
How precious! Young love, it's such a sweet thing.
[Image via Splash News.]