Let's face it, at one time or another we've probably fallen into the hole of scrolling through celebrity Instagram accounts. Luke Hemmings' [1] Instagram account was already the perfect subject for my mindless Instagram scrolling, but once he and Sierra Deaton got together, the content got even better. 5 Seconds of Summer's Luke made things Instagram official with dancer and singer Sierra (whom you probably saw on the final season of The X Factor) in August 2018 and are so cute together that we just keep saying "aww" over and over. Let's check out some of their cutest pictures as we impatiently wait for more.