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17. Elton John (February 7, 2016)
Elton John took a seat in Corden's car in February 2016. The famed singer sang his classics, discussed his iconic style, and racked up 11 million views as of May 2016.
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16. Demi Lovato and Nick Jonas (May 16, 2016)
Longtime friends and collaborators Demi Lovato and Nick Jonas carpooled with Corden in May 2016. The former child stars dished on their dating lives, their relationship, and sang each other's songs. The video has more than 11 million views a week later as of May 2016.
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15. Carrie Underwood (December 2, 2015)
Carrie Underwood joined Corden for some carpooling in December 2015. The American Idol alum busted out some country hits, talked about her hockey-playing husband, and reached nearly 15 million views as of May 2016.
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14. Jason Derulo (November 4, 2015)
Jason Derulo took a seat next to Corden after staying up all night the previous evening. The star, whose video has more than 17 million views as of May 2016, performed "Talk Dirty," discussed the activities that go down in his round bed, and showed off his opera chops.
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13. Rod Stewart and A$AP Rocky (July 14, 2015)
Rod Stewart rode shotgun for some Carpool Karaoke with Corden in July 2015. He was soon joined by surprise collaborator A$AP Rocky, as the two musicians sang their hits, talked shop, and picked up more than 18 million views as of May 2016.
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12. Chris Martin (February 2, 2016)
James Corden celebrated the Super Bowl by carpooling with Halftime Show performer Chris Martin. The Coldplay singer, who counts nearly 20 million views as of May 2016 for his video, crooned a few songs, admitted his lack of football knowledge, and cajoled Corden into driving him to San Francisco.
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11. Stevie Wonder (September 14, 2015)
Stevie Wonder got in on the Carpool Karaoke fun in September 2015. The iconic singer made fun of Corden's accent, called his wife, and charted more than 21 million views as of May 2016.
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10. Jennifer Hudson (April 13, 2015)
One of Corden's first Carpool guests, Jennifer Hudson took part in the bit in April 2015. She teamed up with the host for performances of her singles, stopped for a burger, and counted nearly 22 million views as of May 2016.
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9. Mariah Carey (March 25, 2015)
Mariah Carey graced the carpool lane with her presence in March 2015. She did a British accent for Corden, performed some of her throwback jams, and charted more than 24 million views as of May 2016.
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8. Gwen Stefani (May 4, 2016)
Gwen Stefani had quite the star-studded stint in Corden's car in May 2016. The No Doubt singer was joined by Money Monster actors Julia Roberts and George Clooney, who added backing vocals to her songs. About a month later, the video has nearly 25 million views.
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7. Iggy Azalea (June 18, 2015)
Counting more than 36 million views of May 2016, Iggy Azalea spent time with Corden in the car in June 2015. She spit bars from her songs, dished on her relationship with Nick Young, and tried on wedding dresses with the Late Late Show host.
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6. Jennifer Lopez (March 29, 2016)
Jennifer Lopez made it from the block to Corden's car in March 2016. Counting nearly 40 million views as of May 2016, the video had Lopez singing, discussing her personal life, and texting Leonardo DiCaprio.
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5. Justin Bieber Volume Two (November 18, 2015)
Justin Bieber did a second stint in November 2015, a few months after his first appearance, and counts more than 43 million views as of May 2016. Reuniting with Corden for another round of Carpool Karaoke, he performed "Never Say Never" and "What Do You Mean?," went shopping with the talk show host, and schooled Corden on swag and dance moves.
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4. Sia (February 16, 2016)
One of the more private stars, Sia joined Corden for a stint on Carpool Karaoke in February 2016. She performed some of her singles and caught up with the host, keeping her trademark face-covering wig on all the while and counting more than 44 million views as of May 2016.
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3. One Direction (December 15, 2015)
The boys of One Direction piled into Corden's car in December 2015. With more than 65 million views as of May 2016, Niall Horan, Liam Payne, Louis Tomlinson, and Harry Styles sang their jams, choreographed a boy band routine, and played "Shag, Marry, Cruise."
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2. Justin Bieber Volume One (May 20, 2015)
Justin Bieber first sat shotgun in Corden's car in May 2015. The pop star sang the hits, snacked on some french fries, and mingled with fans, counting more than 75 million views as of May 2016.
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1. Adele (January 13, 2016)
Adele, who joined Corden's carpool in January 2016, takes the top spot. The famed British performer sang Spice Girls, rapped Nicki Minaj, and counted more than 105 million views as of May 2016.