John Kransinski Showcases Buff New Look

ABC News' Sara Haines reports the buzziest stories in "GMA" Pop News.
3:15 | 12/19/15

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Transcript for John Kransinski Showcases Buff New Look
Time for "Pop news" with Sara Haines slash chewbacca. We are starting with hot bodies and ending with dogs. My favorite -- that's not where I'd go with -- let's start at that end. Trending everywhere. John Krasinski's jaw-dropping body makeover, "The office" alum is showing off his buff new look on the cover of "Men's health" magazine. He bulked up in just four months to play an ex-navy S.E.A.L. In the movie "13 hours." Krasinski admits diet and training regimen was brutal with twice a day workouts with chicken salads and water. Wow, I could never do. I've been living that way for years. Look what it's done for me. Maybe you should try another brand of chicken or salad. Not working completely. Jeremy Renner is preparing to step in the ring for an upcoming biopic called " "Undefeated" about the boxer -- How you -- Biopic. Sounds more fun. Don't interrupt her. Biopic about rocky Marciano. Possibly a relative of our own known as the brockton blockbuster. Sylvester stone's famous character rocky Balboa. You look like him sort of kind of. He inspired your forecasting style. Rob is cuter than everyone I just mentioned not to be rude -- If you saw me fight you would know I'm not related to rocky Marciano. More of a dancer. He will slip on the gloves to tell the true story of the undefeated boxer charting his rise to fame in the 1950s. I love a boxing movie. Especially when they do their own stunts. They get cuter. Loads of people are flocking to the theater over the next few days to see "Star wars: The force awakens" and love it or hate it we can agree on one thing, bb-8 is the cutest droid in the universe and discovered there's actually a scientific reason why we all find bb-8 so darned adorable. Excuse me. It's called baby skhema. "New York" magazine explains a proven theater that creatures are found to be cute when they have large head, short fit extremities and clumsy me movements. Why we love babies. That's not how I would have said it. I thought it was cute and little and makes beepy noises. They say dogs are man's best friend but a new video from new York City group east love is proving that puppies are also a band's best friend. Take a look at these shelter dogs stealing the show in this viral cover of Marvin Gaye's cover "Let's get it on." ? I've been really trying, baby ? ? trying -- These adorable music video stars are available for adoption. That's krurnl. The dogs, that is, not the band but the pups are from bidewy unleashed animal shelter and hoping they can find forever homes so please adopt and rescue them. Cats wouldn't do that, Dan. Cats would not do that. Harder to train. Great message for the holiday. Adopt a pet. Save a life and improve your own. We'll see you tomorrow. Whoa! Live from wcvb-tv, channel 5,

This transcript has been automatically generated and may not be 100% accurate.

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