Hollywood\u0027s Top Vanity Muscles\u000AWhich stars have the best abs, pecs, and biceps? See the reigning 12 contenders in our slideshow.\u000A\u000ASee also our workout tips from celebrity trainers.\u000AWhich stars have the best abs, pecs, and biceps? See the reigning 12 contenders in our slideshow.\u000A\u000ASee also our workout tips from celebrity trainers.\u000A__Muscle: Pectoralis Major\u000A\u000ACelebrity: Kellan Lutz__\u000A\u000A We lead with our chests. It\u0027s where we pin medals and where we hold others tight. It\u0027s also the secret to giving any shirt shape. Richard McDonald, Kellan Lutz\u0027s pal and personal trainer, got Lutz to build his pecs using an explosive workout known as the Bosu ball push-up. See also: Mark Wahlberg.\u000A__Muscle: Triceps\u000A\u000ACelebrity: Zac Efron__\u000A\u000A Visible from every angle, the tricep (so named because it has three interwoven parts) is the marquee of a man\u0027s upper arm, it\u0027s why fitted T-short sleeves exist, and it\u0027s the highlight of our profile when we\u0027re sans shirt.\u000A__Muscle: Obliques & Inguinal Ligament\u000A\u000ACelebrity: Brad Pitt__\u000A\u000A Brad Pitt\u0027s post-rumble pose in Fight Club launched the still-frenzied obsession with our obliques, which connect to the inguinal ligament, or devil\u0027s horns. Happily, the lean look and the low-rise jean have been with us ever since.\u000A__Muscle: Biceps\u000A\u000ACelebrity: Ryan Reynolds__\u000A\u000A From Brando in On the Waterfront to Sly in Rocky to Ryan Reynolds in various movies (like Blade: Trinity, here), the biceps muscle has long been the leading man\u0027s co-star. It exudes brute power and athleticism and is the most masculine of all our musculus superficies.\u000A__Muscle: Trapezius\u000A\u000ACelebrity: Tim Tebow__\u000A\u000A The wings that fan out from our neck and down to our middle back frame our entire upper body, adding depth to the chest, and shading to the shoulders. They\u0027re key in safeguarding the neck and spine, which is why rugby players and quarterbacks often sport the sexiest sets.\u000A__Muscle: Deltoid\u000A\u000ACelebrity: Rafael Nadal__\u000A\u000A Shoulders are our battering rams. The football tackle, the rugby scrum, and the tennis ace all rely on a powerful shoulder. And, yes, we\u0027re well aware our delts look sexiest when we stand in the pool and cross our arms on the edge of the deck.\u000A__Muscle: Brachioradialis\u000A\u000ACelebrity: Adam Levine__\u000A\u000A Face facts: The hulking wristwatch isn\u0027t getting any smaller. But to bear these bulky timepieces you must have toned, strapping, Adam Levine-esque forearms. If your lower guns are slight, you\u0027ll look like you swiped Daddy\u0027s IWC off his bureau. Be proud when you roll up your sleeves, son.\u000A__Muscle: Quadriceps\u000A\u000ACelebrity: David Beckham__\u000A\u000A If you think David Beckham is just some pretty boy with a skinny wife, please YouTube his game-winning kick against Greece. In what is one of the sport\u0027s most storied shots, he crushes the ball from 30 yards, bending it into the top corner of the net, freezing the dumbfounded goalie. Physicists have studied it, estimating the ball left his foot at nearly 80 mph. He booted it that hard after 90 minutes of sprinting up and down a 114-yard pitch. Power, grace and instant all-star status sprouted from his hot thighs.\u000A__Muscle: Triceps Surae\u000A\u000ACelebrity: Mikhail Baryshnikov__\u000A\u000A A shapely calf muscle turns heads. It exudes pure explosive power—from the running back\u0027s dash to the end zone to the ballet dancer\u0027s show-stopping leap. They make wearing shorts worth it.\u000A__Muscle: Latissimus Dorsi\u000A\u000ACelebrity: Rodin\u0027s The Thinker__\u000A\u000A Known as the swimmer\u0027s muscle, the lats add depth to our front-on physique. If Michelangelo\u0027s David boasts the perfect backside, Rodin wins the prize for capturing the beauty and power of the lats. In both his The Thinker and The Kiss, the muscle is a main focal point.\u000A__Muscle: Abdominals\u000A\u000ACelebrity: Mark Wahlberg__\u000A\u000A When Mark Wahlberg showed off his ripped torso for Calvin Klein 20 years ago, it ushered in the age of the abs, becoming a religion for many men. Without the abs there\u0027d be no Abercrombie & Fitch, no Situation, no Ab Circle Pro. Now, thanks to two decades of (rightful) washboard worship, when we see a six-pack, we\u0027re glimpsing our generation\u0027s notion of the ideal male.\u000A__Muscle: Gluteus Maximus\u000A\u000ACelebrity: Alexander Skarsgård__\u000A\u000A Isn\u0027t it odd that we sneak peaks at the backsides of others, yet when we hit the gym, we\u0027re only concerned with filling out our fronts. True Blood\u0027s Alexander Skarsgård, Taylor Lautner, and Jacoby Ellsbury weren\u0027t born with perfect butts. They all worked their, ahem, asses off to earn those sculpted buns of steel. So should you.