Beyonce was caught by the paparazzi as she slipped out the back door of the Warwick in Hollywood. Beyonce performed a tribute to Diana Ross during her exclusive 75th birthday party.

Beyonce had to walk through a bunch of garbage to sneak out. And given her dress - it's caused people on Twitter to start chatting.

Bey's dress was Black and made from a shiny material. Her haters online pointed out that a garbage bag is black and shiny too.

When the pics of Beyonce leaked showing her walking through trash wearing the dress, it just amplified the negative comments on Twitter.

So far Beyonce has not commented on the hateful comments made against her dress. But as you can imagine, her Beehive fans are fighting back . . .

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Also in attendance were members of Diana’s large family (daughter Tracee Ellis Ross, son Evan Ross, and daughter-in-law Ashlee Simpson, among others), as well as longtime friends like Motown founder Berry Gordy and a multitude of stars — including Sean “Diddy” Combs, DJ Khalid, French Montana, Kris Jenner, Kourtney Kardashian and Khloé Kardashian.

All gathered around what Tracee dubbed “the biggest cake ever” to sing Diana “Happy Birthday” in social media video from the party. But the Blackish actress, 46, saw Beyoncé in the crowd and quickly called the “Single Ladies” songstress over to lead things off instead.

This isn’t the first time Beyoncé has serenaded the singer.

In 2000, the 37-year-old songstress covered Diana’s 1980 disco hit “Upside Down” alongside her Destiny’s Child bandmates for VH1’s Divas Live tribute concert to Diana’s illustrious career.

Beyoncé has also cited Diana as an influence on her musical style, even playing a fictional girl group singer turned solo star based on Diana in the film adaptation of the hit musical Dreamgirls.