Fast Track: How did Elvis Presley really die?

A roundup of this morning’s arts and entertainment headlines:

Elvis Presley’s doctor claims the king died from chronic constipation. Eat your fiber! (Fox News)

The official site for J.J. Abrams’ “Super 8” has launched. (Official site)

Meanwhile, the much-buzzed-about trailer has leaked. (Movie Viral)

Gustavo Dudamel pulled a neck muscle Thursday night while conducting the L.A. Philharmonic. (Los Angeles Times)

The long-bickering actors unions are considering merging. ( Los Angeles Times)

Ke$ha will headline a benefit concert for Nashville, her hometown. (Entertainment Weekly)

Country stars Taylor Swift, Kenny Chesney and Keith Urban are also rallying for the city. (Los Angeles Times)

Documentarian Joe Berlinger has to turn over 600 hours of footage to help an oil company dismiss lawsuits. Michael Moore isn’t happy. (New York Times)

Fox is launching a “Planet of the Apes” prequel. Was anyone asking for this? (Los Angeles Times)

It’s Pac-Man’s 30th birthday, and big plans are apparently afoot. (Ain’t It Cool News)

Katee Sackhoff explains why she turned down “True Blood.” Short answer: job security. (Entertainment Weekly)

Stephen King will cameo on the new season of “Sons of Anarchy.” (Entertainment Weekly)

Forget the gossip sites, now the Washington Post’s political writers are calling Gabourey Sidibe a mean girl. (Washington Post)

Oasis’ Liam Gallagher is planning a Beatles movie about the Fab Four’s breakup. (Daily Mail)

-- Patrick Kevin Day

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