Bruce and Lady Gaga singing Journey's famed '80s anthem along with Elton John. Sounds almost like an acid trip, but it actually happened and here is the evidence from the Rainforest Fund's 21st Birthday Celebration benefit concert at Carnegie Hall Thursday, May 13, 2010 in New York City.
16. REM / 'Man on the Moon'
Bruce joined REM at a vote for change concert. He starts singing at about 4:10 into the performance, duets with Michael Stipe and then breaks off a pair of cool guitar solos. This is a performance any child of the '90s will appreciate.
15. Neil Young / 'All Along the Watchtower'
The Godfather of Grunge and The Boss team up on the Bob Dylan classic popularized by Jimi Hendrix in what seems like an unrehearsed 2004 duet.
14. The Rolling Stones / 'Tumbling Dice'
At a concert in Rio Lisboa earlier this year, Mick Jagger brought Springsteen, who was vacationing there at the time, out on stage to join the band on its 1972 classic from 'Exile on Main St.'
13. Dave Grohl and Elvis Costello / 'London Calling'
In 2003 at the Grammy Awards, the boss joined Elvis Costello and Dave Grohl, of Nirvana and Foo Fighters fame, in a tribute to The Clash's Joe Strummer.
12. Joan Jett / 'Light of Day'
The '80s rocker invited Springsteen to join her onstage for the title song written by Springsteen from 'Light of Day,' a 1987 film she starred in with Michael J. Fox.
11. Phish / 'Glory Days'
Bruce joined the ultimate jam band to rock out to one of his own classics, 'Glory Days,' at Bonnaroo in 2009.
10. U2 / 'I Still Haven't Found What I'm Looking For'
'I'm looking for the Boss,' Bono exclaims in the middle of the song ... and almost magically Springsteen materializes.
9. John Fogerty, Jackson Browne and Eddie Vedder / '(What's So Funny 'Bout) Peace Love & Understanding'
Bruce Springsteen & The E Street Band with Jackson Browne, John Fogerty and Eddie Vedder a Nick Lowe song that was popularized by Elvis Costello in East Rutherford NJ, at the Vote For Change concert on October 13, 2004.
The earliest rock influencer that Bruce has performed with is Chuck Berry on his iconic hit during the Rock And Roll Hall Of Fame in 1995.
6. Axl Rose / 'Come Together'
The Guns 'N' Roses frontman and Bruce performed a duet of the Beatles' 'Come Together' at the 1994 Hall of Fame Inductions Ceremony, when John Lennon was inducted into the Hall of Fame as a solo artist.
5. Melissa Etheridge / 'Thunder Road'
Etheridge tells an amusing story about having called Springsteen on the phone to ask 'what if?' The result: a very cool unplugged version of 'Thunder Road.'
4. Billy Joel / 'New York State of Mind'
'Are you ready for the bridge and tunnel summit meeting?' Bruce asked the crowd at the 25th Anniversary Rock and Roll Hall of Fame concert in 2009. The 'King of Long Island' met New Jersey on 'neutral ground' at Madison Square Garden, and this is what happened.
3. Paul McCartney / 'I Saw Her Standing There' and 'Twist and Shout'
The two rock legends came together for an amazing finish to Springsteen's final concert of Hard Rock Calling 2012 in London. The collaboration was amazing, but not amazing enough for concert promoters. It's not in the video above, but promoters -- to the great surprise of McCartney and Springsteen -- pulled the plug on their encore when the show broke the building's sound curfew.
2. Bon Jovi / 'Born To Run'
The two Jersey boys looked and sounded like they've been (or maybe should have been) touring together for decades as they rocked out on 'Born To Run' at Madison Square Garden during the 12/12/12 Sandy Relief concert.
1. Eddie Vedder, Tom Morello / AC/DC's 'Highway to Hell'
In a moment of rock awesomeness, Bruce was joined by Pearl Jam singer Eddie Vedder and Rage Against the Machine guitarist Tom Morello, for a cover of AC/DC's 'Highway To Hell' at a show in Melbourne, Australia in February 2014.
NEW YORK - OCTOBER 29: Bruce Springsteen and the E Street band with Billy Joel perform onstage at the 25th Anniversary Rock & Roll Hall of Fame Concert at Madison Square Garden on October 29, 2009 in New York City. (Photo by Dimitrios Kambouris/WireImage)
Bruce Springsteen, left , and Chuck Berry laugh during the performance of the Berry hit "Johnny B. Goode" at the Concert for the Rock and Roll Hall of Fame in Cleveland on Saturday, Sept. 2, 1995. Berry was the opening act of the concert. (AP Photo/Mark Duncan)
Lady Gaga and Sir Elton John, right, greet Bruce Springsteen after his performance during the Rainforest Fund's 21st Birthday Celebration benefit concert at Carnegie Hall Thursday, May 13, 2010 in New York. (AP Photo/Jason DeCrow)
Musician Bruce Springsteen, left, performs with Mick Jagger of The Rolling Stones at the Prudential Center in Newark, NJ on Saturday, Dec. 15, 2012. (Photo by Evan Agostini/Invision/AP)
Bruce Springsteen, right, and R.E.M.'s Michael Stipe, left, take part in the "Vote for Change" concert on Monday, Oct. 11, 2004 in Washington. (AP Photo/Evan Vucci)
Bruce Springsteen and The E Street Band performs in concert during their âHigh Hopes Tourâ at Hershey Stadium on Wednesday, May 14, 2014, in Hershey, Pa. (Photo by Owen Sweeney/Invision/AP)
NEW YORK, NY - DECEMBER 12: Musicians Bruce Springsteen, Jon Bon Jovi and Max Weinberg perform at '12-12-12' a concert benefiting The Robin Hood Relief Fund to aid the victims of Hurricane Sandy presented by Clear Channel Media & Entertainment, The Madison Square Garden Company and The Weinstein Company at Madison Square Garden on December 12, 2012 in New York City. (Photo by Larry Busacca/Getty Images for Clear Channel)
Eddie Vedder and Bruce Springsteen during 'Vote For Change' Closing Night Concert - October 13, 2004 at Continental Airlines Arena in East Rutherford, New Jersey, United States. (Photo by Debra L Rothenberg/FilmMagic)
NEW YORK - OCTOBER 30: Bruce Springsteen (C) performs onstage with the Edge (L) and Bono (R) of U2 at the 25th Anniversary Rock & Roll Hall of Fame Concert at Madison Square Garden on October 30, 2009 in New York City. (Photo by Theo Wargo/WireImage)
(L-R) Musicians Bruce Springsteen and Axl Rose performing. (Photo by Time Life Pictures/DMI/The LIFE Picture Collection/Getty Images)
NEW YORK - FEBRUARY 23: Dave Grohl of Foo Fighters (Left), Bruce Springsteen and Elvis Costello perform during the 45th Annual Grammy Awards at Madison Square Garden on February 23, 2003 in New York City. (Photo by Frank Micelotta/Getty Images)
Jackson Browne, John Fogerty, Eddie Vedder and Bruce Springsteen (Photo by Debra L Rothenberg/FilmMagic)
Bruce Springsteen celebrated his 65th birthday this past Tuesday, September 23, officially hitting full retirement age, but he shows no signs of actually retiring.
Earlier this week, Reuters columnist David R. Shumway noted that back in 1975 an up-and-coming Springsteen appeared on the cover of Newsweek. However, the accompanying story, 'Making of a Rock Star,' dismissed Springsteen as a product of 'hype.' (Springsteen also was on the cover of TIME magazine that week, making him the first rock artist to grace the cover of both weekly news mags in the same week, Ultimate Classic Rock reports.)
Some 30 years later U2 front man Bono would muse, 'When I say that America is not just a country, it's an idea -- I'm thinking about people like Bruce Springsteen.' Bono made that sweeping statement just before bringing Bruce onstage to sing 'I Still Haven't Found What I'm Looking For' with U2. Moments like that illustrate how Springsteen transcended the so-called hype Newsweek wrote of in 1975.
And the amazing thing is, there are so many of these moments.
Springsteen has become the ultimate special guest throughout his career. The Boss has teamed up with everybody who's anybody among rock royalty: The Rolling Stones, REM, Neil Young, Bob Seger, Billy Joel, Bon Jovi -- even Lady Gaga. The list goes on and on, so we've put together a purely subjective video slide show of 17 of the best of Springsteen's collaborations.
In 2011, Rolling Stone put together a list of 18 of his great collaborations, and several of the clips dug up by Rolling Stone are featured above. But there have been some amazing performances since then and there are a few from before then that didn't make Rolling Stone's list.
Click through the slide show to see some of the many famous faces he's performed with over the years.
Bruce singing Journey's 'Don't Stop Believin'' with Lady Gaga and Elton John is nothing short of must-see. The AC/DC cover Springsteen performed in Australia along with Pearl Jam's Eddie Vedder and Rage Against the Machine's Tom Morello is wild, as is the ' the bridge and tunnel summit meeting' Springsteen held in New York City with Billy Joel. And, of course, Bruce and Bon Jovi singing together in an eruption of genuine New Jersey pride is a vision to behold.