Justin Timberlake salutes Prince in Super Bowl halftime dance party

Minneapolis - Justin Timberlake danced his way through a club-inspired Super Bowl halftime show Sunday as he paid tribute to Prince in the late singer's hometown with a towering yet tasteful projection.

After fevered speculation on whether or how Timberlake would salute the icon as the Super Bowl came to Minneapolis, the pop star obliged midway through his performance.

"Minneapolis, this is for you," Timberlake told the crowd as he sat down to a piano, the field bathed in purple light.

As Timberlake slowed down the tempo for a soulful cover of "I Would Die 4 U," footage of "Purple Rain"-era Prince shot up toward the roof of the new US Bank Stadium in a smoky haze, closing with a silhouette of The Purple One with his guitar.

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But Prince, who died in April 2016 of an accidental overdose, did not "perform" in a hologram - as some fans had feared - and the segment, while memorable, amounted to a fleeting moment of the up-tempo show.

There was also no naked "wardrobe malfunction" of the type that marred Timberlake's last appearance 14 years ago, when he joined Janet Jackson at the Super Bowl - by far the most watched US television event of the year.

While many Super Bowl performers go heavy on pyrotechnics, Timberlake instead showed off his dancing skills, opening the show in a nightclub-like maze of lasers as he sang his recent single "Filthy."

Timberlake then strutted into the stadium with his mic in hand, leading a squad of dancers - and matching them step for step - as he sang a medley of his best-known songs including "SexyBack."

He rose to centre stage and sang "Suit and Tie" with back-up from the appropriately attired University of Minnesota marching band, who moved to the music with their instruments doubling as props.

How to honour Prince?

Timberlake has described Prince as a "huge influence" on him, but his Super Bowl tribute had generated controversy even before it happened.

The celebrity gossip site TMZ earlier said that Timberlake was considering a Prince hologram, horrifying many fans.

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Sheila E., one of Prince's closest collaborators, said late Saturday that she had spoken to Timberlake who voiced "heartfelt words of respect" for The Purple One - and assured no hologram.

Prince had a famously complicated relationship with technology, with the artist among the first stars to embrace the possibilities of online music but eventually becoming disgruntled over the internet's cultural effects.

In a 1998 interview with Guitar World, Prince said he would never want to "perform" with a dead artist such as Duke Ellington through digital effects, calling such lack of artistic control for a late musician "the most demonic thing imaginable."

In Timberlake's last Super Bowl appearance in 2004, he entered as the surprise guest of headliner Jackson and swiped his hand across her chest - exposing one of her breasts.

A scandalized TV-watching nation saw Jackson's nipple - well, covered with a metal nipple shield - and broadcaster CBS was fined $550,000 for indecency.

Jackson took to social media ahead of the latest Super Bowl to make clear she was not coming back for a do-over.