Diana Ross makes a dramatic arrival at her 75th party... before Beyoncé delights the star-studded crowd by singing Happy Birthday
Beyonce stole the show at Diana Ross' 75th party in Hollywood, Los Angeles, on Monday night after she sang Happy Birthday to her.
The Crazy In Love hitmaker, 37, decided to serenade the iconic Ain't No Mountain High Enough singer in front of all of her star-studded guests.
Fellow partygoer, Khloe Kardashian, documented the iconic moment on her Instagram stories.
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![Legend: Beyonce stole the show at Diana Ross' 75th party in Hollywood, Los Angeles, on Monday night after she sang Happy Birthday to her](https://i.dailymail.co.uk/1s/2019/03/27/08/11509910-6855059-image-m-3_1553676365679.jpg)
Legend: Beyonce stole the show at Diana Ross' 75th party in Hollywood, Los Angeles, on Monday night after she sang Happy Birthday to her
In the video, it saw Diana's daughter, Tracee, call out to the guests: 'Beyonce, are you still here? Do you want to sing Happy Birthday? Come on down!'
The Lemonade hitmaker then made her way down to the huge silver sparkly tiered cake which had pictures of Diana all over it.
Beyonce went on to give an incredible spontaneous version of Happy Birthday, in which she called her Miss Ross, and was met with lots of cheers from guests.
And it wasn't long until fans took to social media to share their excitement over the 'iconic' moment.
![Video debut: Later on, P Diddy made a debut in a video shared to Khloe Kardashian's Instagram story as she filmed Beyonce singing Happy Birthday to Diana](https://i.dailymail.co.uk/1s/2019/03/27/08/11510440-6855059-image-m-4_1553676374649.jpg)
Iconic: The Crazy In Love hitmaker, 37, decided to serenade the iconic Ain't No Mountain High Enough singer in front of all of her star-studded guests
![Iconic: The Crazy In Love hitmaker, 37, decided to serenade the iconic Ain't No Mountain High Enough singer in front of all of her star-studded guests](https://i.dailymail.co.uk/1s/2019/03/27/08/11511332-6855059-image-m-6_1553676417953.jpg)
Wow: In the video, it saw Diana's daughter, Tracee, call out to the guests: 'Beyonce, are you still here? Do you want to sing Happy Birthday? Come on down!'
One person said: 'Beyoncé singing happy birthday to Diana Ross is ICONIC!'
A different fan put: 'We need the studio version of Beyoncé singing Happy Birthday to Diana Ross.'
Another show watcher commented: 'I’m dying at Beyoncé singing happy birthday to Diana Ross.'
While a different account added: 'Diana Ross’ 75th birthday party and Beyonce sang happy birthday to her...my heart hurt.'
![Special: The Lemonade hitmaker then made her way down to the huge silver sparkly tiered cake and went on to give an incredible spontaneous version of Happy Birthday](https://i.dailymail.co.uk/1s/2019/03/27/08/11511328-6855059-image-m-22_1553676565621.jpg)
![Special: The Lemonade hitmaker then made her way down to the huge silver sparkly tiered cake and went on to give an incredible spontaneous version of Happy Birthday](https://i.dailymail.co.uk/1s/2019/03/27/08/11511326-6855059-image-m-19_1553676542166.jpg)
Special: The Lemonade hitmaker then made her way down to the huge silver sparkly tiered cake and went on to give an incredible spontaneous version of Happy Birthday
![Documented: Fellow partygoer, Khloe Kardashian, documented the iconic moment on her Instagram stories](https://i.dailymail.co.uk/1s/2019/03/27/08/11509576-6855059-Khloe_who_enjoyed_the_bash_with_her_famous_family_as_well_as_a_h-m-27_1553676593809.jpg)
Documented: Fellow partygoer, Khloe Kardashian, documented the iconic moment on her Instagram stories
Beyonce looked sensational in a black waistcoat blazer style top with sheer fishnet style sleeves, she styled her blonde locks into a sleek high plaited ponytail.
Diana chose a dress to impress for her milestone birthday celebrations, arriving at her bash in a huge orange ruffled gown.
The ultra bright number showed off her cleavage, but the voluminous ruffles meant it was a struggle for the singing legend to get out of her car, with an aide seen helping her with the dress.
![Stunning: Diana chose a dress to impress for her milestone birthday celebrations, arriving at her bash in a huge orange ruffled gown](https://i.dailymail.co.uk/1s/2019/03/27/09/11512746-6855059-image-a-2_1553679783905.jpg)
Stunning: Diana chose a dress to impress for her milestone birthday celebrations, arriving at her bash in a huge orange ruffled gown
![Incredible: The ultra bright number showed off her cleavage, but the voluminous ruffles meant it was a struggle for the singing legend to get out of her car, with an aide seen helping her with the dress](https://i.dailymail.co.uk/1s/2019/03/27/09/11512750-6855059-image-a-9_1553679816018.jpg)
![Incredible: The ultra bright number showed off her cleavage, but the voluminous ruffles meant it was a struggle for the singing legend to get out of her car, with an aide seen helping her with the dress](https://i.dailymail.co.uk/1s/2019/03/27/09/11512752-6855059-image-m-8_1553679809463.jpg)
Incredible: The ultra bright number showed off her cleavage, but the voluminous ruffles meant it was a struggle for the singing legend to get out of her car, with an aide seen helping her with the dress
![Struggle: The ultra bright number showed off her cleavage, but the voluminous ruffles meant it was a struggle for the singing legend to get out of her car, with an aide seen helping her with the dress](https://i.dailymail.co.uk/1s/2019/03/27/09/11511440-6855059-Stunning_Diana_chose_a_dress_to_impress_for_her_milestone_birthd-a-1_1553679771054.jpg)
Details: She added glittering earrings in a matching orange and completed her look with a similar hue of lipstick
She added glittering earrings in a matching orange and completed her look with a similar hue of lipstick.
The twice-divorced grandmother-of-five has had a phenomenal career dating back to the 1960s when she fronted Motown girl group The Supremes, inducted to the Rock and Roll Hall of Fame in 1988.
Diana - who's sold over 100M records - has won a Grammy, a Golden Globe, Kennedy Center Honors, and the Presidential Medal of Freedom.
On Tuesday night, she celebrated her milestone with family and friends onstage the Hollywood Palladium for a once-in-a-lifetime concert.
![Another change! Diana left her bash in another glam look, looking chic in a long black dress and feather pink wrap](https://i.dailymail.co.uk/1s/2019/03/27/12/11517092-6855059-Another_change_Diana_left_her_bash_in_another_glam_look_looking_-a-72_1553689064905.jpg)
![Grand exit: The star looked incredible in yet another glam outfit](https://i.dailymail.co.uk/1s/2019/03/27/12/11517088-6855059-Grand_exit_The_star_looked_incredible_in_yet_another_glam_outfit-a-75_1553689064924.jpg)
Another change! Diana left her bash in another glam look, looking chic in a long black dress and feather pink wrap
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