Guess the soundtracks for these presidential hopefuls

Here's another fun and flippant way to judge presidential candidates. Which Caesars Colosseum headliners do Hillary Clinton, Bernie Sanders and Donald Trump sing to privately or promote publicly?

Clinton plays Jennifer Lopez at rallies. Sanders listens to Celine Dion. Trump is an Elton John fan.

Here in Nevada, Clinton and Sanders square off in Saturday's Democratic caucus, and Trump is the runaway favorite in Tuesday's GOP caucus.

I was going to investigate their entertainment preferences, but Rolling Stone magazine beat me to it, asking each baby boomer to turn over their music cards.

It turns out all three have safe conventional tastes. They're radio slaves to influential superstars.

Clinton: She was raised on the Beatles, Rolling Stones, the Who, the Doors, Elvis and the Supremes. She apparently likes Loretta Lynn, Selena Gomez, Lana Del Rey, Lady Gaga and reveres Beyonce. Her rallies play songs by Jennifer Lopez, Marc Anthony, Katy Perry, Kelly Clarkson and Gym Class Heroes.

Her taste: Pop and dance idols, slightly more female-oriented.

Sanders: He once sang folk covers of "This Land is Your Land" and "Where Have All the Flowers Gone" on a political cassette. His iPad boasts every Beethoven symphony, plus the Supremes, Temptations, Abba, Bee Gees and Celine Dion.

His taste: Fits his profile as a disco-era FDR-styled Socialist-Democrat.

Trump: He rocks the way of Aerosmith, Elton John, Paul McCartney, Michael Jackson and Neil Young (although he and Young had a public tiff). Trump picks his own rally songs, including the Stones' "Brown Sugar" and Twisted Sister's "We're Not Gonna Take It."

His taste: Classic rock, seemingly male-oriented.

Lagging GOP candidates: Jeb Bush leans country but likes Stevie Wonder and classic rock circa Journey. John Kasich turns on to Pink Floyd, AC/DC, Pearl Jam and Linkin Park.

Unexpected twist: Ben Carson performed jazz and classical in high school, so he's drawn to symphonies, Motown and Moody Blues, but his favorite song is Richard Harris' accidentally funny "MacArthur Park," which some polls decades ago named as the worst single of all time.

SMOKING ADVICE FROM A SMOKER

Wednesday morning, comedian Joey Diaz got baked live on Periscope (the video app), thrilling fans with his interactive "Morning Joint" appearance.

Then he gave me a call so we could talk about his Friday and Saturday gigs at the South Point hotel ($14-$23).

"I've been getting high since 6 this morning," he said, but he was simultaneously getting things done with his wife and Hollywood work. He stars in a voice-over role in the upcoming "Mafia II" video game, and he's a guest on an upcoming "Maron" episode on IFC-TV.

Even though Diaz is a lifelong smoker, once recreational marijuana becomes legal around America, he doesn't want to see "knuckleheads" smoking in the streets, or driving with joints in their mouths.

"Don't get me wrong. I smoke all (expletive) day. But I smoke on my balcony. I don't put it in my car. I like my (driver's) license," he said.

I tried to allay his fears by reminding him Google is making self-driving cars to eventually minimize such driving errors as inebriated fools wrecking into us all.

"Are you (expletive) crazy!?" Diaz said. "I hate driving, but I can't sit in the back of the car trusting some thing driving me around. What if the computer snaps on the (Interstate) 405 doing 90 and I'm sitting in the back seat?"

I don't know, but that sounds paranoid to my tech ears. Bring me those cars, Google!

On Friday, Diaz turns 53 in Vegas. Plans?

"I'm meeting some edible people (fans who own an edible weed company), we're doing a 7:30 show, I'm going to get off the stage, I'm going to hang out, smoke a few numbers with them, eat a few Stars of Death ('THC to the max'), then I'm going up to my room, and I'm going to get a good night's sleep, and I'm looking forward to waking up and eating the French toast from the South Point. I don't eat French toast, but when I go there, I eat some nice French toast and that's the highlight of my weekend, my friend."

UNCORK'D BACK

One of the Strip's most impressive displays of food-and-wine gorging, "Uncork'd," will return to Caesars and The Venetian properties April 28-May 1.

Just like nine previous years, the 2016 installment of "Uncork'd" will feature world famous chefs personally cooking food for ticket-buyers.

Among celebrity chefs and foodies on board: Guy Savoy, Gordon Ramsay, Jean-Georges Vongerichten, Mary Sue Milliken, Rick Moonen, Elizabeth Blau, Giada de Laurentiis and Emeril Lagasse, leading as many as nine master series dinners and 13 private lunches and dinners.

Tickets are as luxurious as the restaurateurs. A multicourse master series with chef Nobu Matsuhisa costs $1,000 (with net proceeds going to the Keep Memory Alive charity). And the big to-do, the Grand Tasting at Caesars Palace, is a $225-$1,000 event (VegasUncorked.com).

The Review-Journal is owned by the Adelson family, majority owners of Las Vegas Sands, which operates The Venetian.

Doug Elfman can be reached at delfman@reviewjournal.com. He blogs at reviewjournal.com/elfman. On Twitter: @VegasAnonymous