Already planning a spring break getaway but afraid to show off your arms in breezy tanks and sleeveless dresses?

Take a cue from Kelly Osbourne, 27 -- who shows off her toned physique as a cohost on E!'s Fashion Police -- and get your arms tank top-ready with these easy, at-home moves courtesy of The Bar Method.

Watch above as Bar Method New York City studio owner Kristin Kelleher and her colleague Amy Duffey demonstrate a simple shoulder sculpting move that takes just minutes. The only equipment needed: A small hand weight or frozen water bottle.

Suggests Kelleher: "Do this exercise three to five times a week in conjunction with other Bar Method exercises to achieve fast results."