Justin Bieber pranks fans on Friends set while joining Demi Lovato as she guest hosts for Ellen DeGeneres
This artist knows how to have a good time, even when it means playing a friendly prank on others.
Justin Bieber showed up for an appearance on The Ellen DeGeneres Show on Friday, which was guest-hosted by the previous day's guest — Bieber's pal Demi Lovato.
While there Justin, 26, showed a clip of his recent shenanigans at the Warner Bros. Studio Tour in Los Angeles, California, in which the Yummy crooner posed undercover as a tour guide on the replica set of beloved Nineties TV show Friends.
![Friends talking about Friends: Justin Bieber showed up for an appearance on The Ellen DeGeneres Show on Friday, which was guest-hosted by Bieber's pal Demi Lovato](https://i.dailymail.co.uk/1s/2020/03/06/20/25637428-8083985-Friends_talking_about_Friends_Justin_Bieber_showed_up_for_an_app-a-61_1583527559979.jpg)
Friends talking about Friends: Justin Bieber showed up for an appearance on The Ellen DeGeneres Show on Friday, which was guest-hosted by Bieber's pal Demi Lovato
The hidden camera prank saw Biebs offering to take photos of unsuspecting tourists as they perched on the iconic orange couch from the show.
While he eventually revealed who he really was to one group of tourists, another couple didn't know that it was Justin Bieber until the taping of the Ellen show, which they attended as members of the studio audience.
Another group visiting the Friends set immediately knew that the strange and talkative employee was actually Justin — unsurprisingly, it was a group of young girls.
![Jokester: While there Justin showed a clip of his recent shenanigans at the Warner Bros. Studio Tour in Los Angeles, in which the Yummy crooner posed undercover as a tour guide](https://i.dailymail.co.uk/1s/2020/03/06/20/25638230-8083985-Jokester_While_there_Justin_showed_a_clip_of_his_recent_shenanig-a-62_1583527559981.jpg)
Jokester: While there Justin showed a clip of his recent shenanigans at the Warner Bros. Studio Tour in Los Angeles, in which the Yummy crooner posed undercover as a tour guide
![Central Perk: Her performed the hidden camera prank on unsuspecting tourists visiting the replica set of beloved Nineties TV show Friends](https://i.dailymail.co.uk/1s/2020/03/08/22/25637424-8083985-Central_Perk_Her_performed_the_hidden_camera_prank_on_unsuspecti-a-2_1583708334339.jpg)
Central Perk: Her performed the hidden camera prank on unsuspecting tourists visiting the replica set of beloved Nineties TV show Friends
For one couple, he invited himself to take a selfie with them, before making a jibe at them and asking the pair to pose facing away from the camera so he could photograph the backs of their heads.
'This is a better angle for you guys,' Justin told them.
For another pair of visitors, Bieber asked them to get up off the couch to fluff the pillows and cushions, which kicked up quite a dust storm.
![These people were confused: For one couple, he invited himself to take a selfie with them](https://i.dailymail.co.uk/1s/2020/03/06/20/25638220-8083985-These_people_were_confused_For_one_couple_he_invited_himself_to_-a-60_1583527559713.jpg)
These people were confused: For one couple, he invited himself to take a selfie with them
![Cough cough: For another pair of visitors, Bieber asked them to get up off the couch to fluff the pillows and cushions, which kicked up quite a dust storm](https://i.dailymail.co.uk/1s/2020/03/08/22/25638228-8083985-Cough_cough_For_another_pair_of_visitors_Bieber_asked_them_to_ge-a-1_1583708334337.jpg)
Cough cough: For another pair of visitors, Bieber asked them to get up off the couch to fluff the pillows and cushions, which kicked up quite a dust storm
While on the show, Bieber jokingly told Lovato he believes his marriage to wife Hailey was 'arranged' after first being introduced by their Christian parents in 2009.
The singer, who wed Hailey, 23, in 2018, made the revelation that their first encounter was years ago when they were aged 15 and 13, and said that their parents 'set this whole thing up.'
Justin also opened up to Demi about his recent battle with Lyme disease, assuring fans he is healthy following his diagnosis and is looking forward to his wife joining him on his upcoming tour.
Watch every episode of Friends on HBO Max soon, or on Stan in Australia now.
![They did fine without Ellen: Friday's taping of The Ellen DeGeneres Show was guest-hosted by the previous day's guest, Lovato, who welcomed her friend Bieber](https://i.dailymail.co.uk/1s/2020/03/06/19/25637436-8083985-e-m-15_1583522734990.jpg)
![They did fine without Ellen: Friday's taping of The Ellen DeGeneres Show was guest-hosted by the previous day's guest, Lovato, who welcomed her friend Bieber](https://i.dailymail.co.uk/1s/2020/03/06/19/25637426-8083985-e-a-16_1583522739375.jpg)
They did fine without Ellen: Friday's taping of The Ellen DeGeneres Show was guest-hosted by the previous day's guest, Lovato, who welcomed her friend Bieber
![Selfie time: While on the show, Justin spoke to Demi about his wife Hailey as well as his health](https://i.dailymail.co.uk/1s/2020/03/08/22/25637430-8083985-Selfie_time_While_on_the_show_Justin_spoke_to_Demi_about_his_wif-a-3_1583708334622.jpg)
Selfie time: While on the show, Justin spoke to Demi about his wife Hailey as well as his health
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