Britney Spears has finally debuted her first music since being released from her extensive conservatorship. The track, “Hold Me Closer” is a very catchy dancey remix of the Elton John song “Tiny Dancer” and features Spears singing her own take on the song’s iconic chorus and a duet with John to boot. It's great to see Elton supporting Britney with this performance, but both stars have worked with plenty of other huge artists before.

The Scottish singer Lulu featured on John’s 2001 album “Songs from the West Coast” where they did a duet cover of the Womack & Womack track “Teardrops”

Singer Pharrell Williams was a songwriter and producer along with his band The Neptunes who worked with Britney Spears on the song “Why Should I Be Sad” off of her 2007 album “Blackout.” He was also a co-writer of her hit single “I’m a Slave 4 U”

Janet Jackson contributed to the accompanying album of John’s musical “Aida” where she sang alongside him in the song “I Know The Truth"

Twain contributed lyrics to Spears’ 2001 pop ballad “Don’t Let Me Be The Last To Know” off of her second album, which was said to be one of the star’s personal favorite tracks from the time.

The late great Queen of soul Aretha Franklin was an admirer and friend of John’s. She covered his and Bernie Taupin’s single “Border Song (Holy Moses)” in 1972, and later brought John to sing on the titular lead track of her album “Through The Storm.”

Spears has been outspoken about the influence popstar Madonna had on her music, and they came together for this hit single off Spears’ 2003 album “In The Zone.” Britney also once penned an article about Madonna for Rolling Stone when they placed her at #36 in their 100 Greatest Artists of All Time list in 2006.

Simply two of the greatest British male popstars at the time and also fast friends, Michael and John came together for a live duet of John’s single “Don’t Let The Sun Go Down On Me” which tore the house down at 1985’s Live Aid.

Spears also shared her talents with the following generation of pop stars that she herself influenced. She appeared in the infamous Miley Cyrus album “Bangerz” with a confident and slick performance on the track “SMS (Bangerz)"

Lady Gaga told Zane Lowe that she considers John a “mentor” who has been instrumental in her continued success and well-being. They made an acclaimed mashup performance together at the 2010 Grammys, which later became the song “Sine From Above” from Lady Gaga’s “Chromatica” record.

Both Spears and Rihanna fans were delighted when Britney appeared on a new remix of the Rihanna single “S&M.” The track’s original writer Ester Dean even said that the whole song was originally written for Spears, so you get the best of both worlds in this remix.

John has also shown his enduring relevance in hugely successful duet tracks with modern stars like “Cold Heart (Pnau Remix)” with Dua Lipa. This track blends original lyrics as well as repurposing John’s incredible past works like “Rocket Man” and “Sacrifice”

It may surprise you to know that these two acts who became massively successful around the same time didn’t make any songs together until 2016 with Britney’s song “Matches” where they both gave well-received vocal performances.

Charles & John recorded the definitive version of John’s 1976 mournful love ballad for Charles’ duet album “Genius Loves Company” in 2004, which ended up being one of Charles’ last recording sessions before his death.

The multi-talented dancer, singer and producer Tinashe made an appearance in a remix of “Slumber Party” which was one of the singles off Spears’ most recent album “Glory.” Spears has said that recording “Glory” helped rekindle her musical passions after years of a traumatic conservatorship.