This week in Celebrity Underwear Sightings, catch Harry Styles shirtless holding a baby in Spain, Tom Daley rocking a sombrero and trunks, and much more.

We’re 100% positive no one will be seeing a new Josh Hutcherson underwear sighting in his new animated movie… so we put together our favorites instead!

In this candid photo, Zac is on the set of his new movie, where we can admire as he lets his sweat pants hang low while he swings a bat and drinks a PBR

Check out this Dwayne Wade and LeBron James underwear sighting of the two Miami Heat star players cooling off during practice for this week’s NBA playoffs.

This week in Celebrity Underwear Sightings, Ryan Phillippe mopped his brow while Niall Horan cut the subtlety and stuck briefs on his head.

Star Trek Into Darkness opens this week, kicking-off summer blockbuster season and sending us on the hunt for more Chris Pine underwear sightings.

This week on the small screen, we caught a Ty Burrell underwear sighting on wheels, a whole line-up of musical stars down to their boxer shorts, and more.

This week Harry Styles tweeted a Niall Horan underwear Vine video of his 1D bandmate dancing around backstage with socks over his hands and skivvies on his head.

This week in Celebrity Underwear Sightings, Zac Efron showed off his skills and his skivvies on the set of Townies (again), while Zachary Quinto posted an Instagram kicking back in his Calvins.

A whole bevy of Tom Daley beach photos surfaced this week, after the British Olympic diver spent a day frolicking with his teammates on the shores of Ft. Lauderdale, Florida.

This week in TV Star Underwear Sightings, stars went wild and left their pants behind, including Chris Messina underwear racing on The Mindy Project and so much more.

It was quite a week for the Paltrow household, as Gwyneth caused quite a stir for her lack of underwear on the Iron Man 3 red carpet, while hubby Chris Martin was spotted working out.

It was a great week for TV Star Underwear Sightings on and off the tube, including a sexy Trevor Donovan underwear spread, Ryan Lochte underwater, and more.

In something of a zany week, paparazzi snapped a Zac Efron underwear sighting on the set of his new movie Townies, while Shaq circled the TNT news studio in his tank and boxers.

As if we weren’t already excited for his reality television debut, this week’s Ryan Lochte underwear sighting brought our anticipation to a fever pitch.