Five things to watch for at this year's Grammy Awards in Las Vegas

Will Olivia Rodrigo sweep all four major awards? Will Beyonce and Jay-Z make an appearance?

From left, Jon Batiste, Olivia Rodrigo and Billie Eilish lead this year's Grammy nominations. Getty Images / AFP

Las Vegas will host the Grammys for the first time on Sunday, one year after the coronavirus pandemic forced organisers to shake up the broadcast with a cabaret-style show heavy on performances.

Music's most prestigious awards ceremony comes with the entertainment world set on edge, just a week after a shocking incident at the Oscars in which Will Smith slapped Chris Rock onstage over a bad joke.

The incident is sure to prompt stiffer stage security and script vetting in Sin City, but there's always a little room at the Grammys for things to get... weird.

Here's a guide to the event, which comedian Trevor Noah will host:

Can Olivia Rodrigo sweep the awards?

Two years after Billie Eilish cleaned up the "big four" prizes — Album of the Year, Song of the Year, Record of the Year and Best New Artist — viral pop sensation Olivia Rodrigo has the chance to do it too.

The former Disney channel actress — who posted record-breaking streaming numbers last year during her explosive ascent to pop's upper echelons — has a total of seven nominations, including in all four of the most prestigious categories.

Rodrigo, 19, is among a coterie of pop stars including Justin Bieber and Doja Cat leading this year's nomination pack.

The drivers license singer is also scheduled to perform, as are a variety of acts including BTS, Eilish, Lil Nas X, HER and nominations frontrunner Jon Batiste.

Ye antics

Kanye West, whose legal name is now Ye, released an album both this year and last, but it's his questionable behaviour that has made him music's chaos agent-at-large.

He scored five nominations this year, most of them for his album Donda — and will face off with longtime nemesis Taylor Swift in the Best Album category, where she has her sole 2022 chance at Grammys gold, for evermore.

Neither are necessarily favourites to win the coveted prize.

Kanye West with his later mother, Donda, at the 2006 Grammy Awards. AP Photo file

But ever since West's infamous "I'mma let you finish" stunt at the MTV Video Music Awards in 2009 — when he walked onstage and interrupted the singer, then 19, who was accepting the award for Best Female Video — all the world's Ye's stage.

For weeks, the mercurial West has been airing personal attacks on comedian Pete Davidson, who is dating West's ex-wife Kim Kardashian.

The Recording Academy had reportedly removed West from the performance line-up over his sometimes troubling behaviour, but some sources said he could still join the line-up at the last minute.

And in any event, he's still invited to the ceremony. Even with seven-second broadcast delays and bleeps, if the Oscars taught us anything, it's that anything can happen.

Will Beyonce and Jay-Z show up?

When the Grammy hopefuls were announced in November, rap mogul Jay-Z became the most nominated artist in the show's history, with 83.

He was previously tied with legendary producer Quincy Jones, who had 80.

At last year's ceremony, Jay-Z's wife Beyonce became the show's most decorated singer in history, with 28 career wins.

So far, the rap billionaire from Brooklyn has 23 gramophones to his name.

Beyonce performed live at the 2017 Grammy Awards. Reuters

But he's never won in a major category, a similar issue to Beyonce's, who despite holding a Grammy record for most wins, has only triumphed once in the "big four" categories.

The Recording Academy faces perennial criticism that it's too white and too male, and that it relegates black artists to rap and R&B categories while refusing to reward them with the top prizes.

In 2018, Jay-Z was the frontrunner with eight nominations, but didn't win a single award.

Needless to say, the couple skipped the 2019 ceremony — and took home a single award, for Best Urban Contemporary Album.

Whether Jay and Bey will deign to show up Sunday in Vegas remains an open question.

Tony Bennett and Lady Gaga

The perhaps improbable duo of Tony Bennett and Lady Gaga are riding on the success of their second duet album Love For Sale, which earned six nominations.

It was the 61st and final studio album of Bennett's career.

Could Tony Bennett join Lady Gaga on stage at the Grammys? AFP

In 2014, Bennett, now 95, became the oldest person ever to reach No 1 on the US Billboard 200 Album Chart through a different collection of duets with Gaga, who became his friend and touring companion.

The legendary crooner recently revealed he's been diagnosed with Alzheimer's disease, a condition he kept under wraps for years.

Bennett has stopped touring, but it's not impossible that he will appear Sunday at Gaga's side.

The pop titan, 36, closed last week's Oscars ceremony alongside Liza Minnelli, another 20th-century great who Gaga has apparently befriended.

Presidential hat trick?

In the ever-eclectic Best Spoken Word Album category, which includes poetry, audiobooks, and storytelling, Barack Obama once again has the leading chance to win what would be his third Grammy.

The former US president is up for his autobiography A Promised Land, two years after his wife Michelle bested her competition to take home the prize for the audiobook of her memoir, Becoming.

Obama — who won the award both in 2006 and 2008 — faces competition from Dave Chappelle, Don Cheadle, poet J Ivy and LeVar Burton, who is set to host the pre-broadcast ceremony.