Tiffany Trump and 'Snap Pack' crew step out at City of Hope cancer research benefit

And how was your Monday afternoon?

Tiffany Trump and her crew of socialite friends gathered at the Plaza Hotel on Monday for a luncheon presented by cancer research center City of Hope. The Spirit of Life Award Luncheon featured a fashion show, during which several of Trump's kinda-famous (but very wealthy) friends took the runway -- and reminded us all that we'll never be cool enough for their crew.

Tiffany posed for photos with some of her Instagram-famous friends, and while you may not know their names, their parents' might sound more familiar: Sophie Simmons is the daughter of Gene Simmons, Hayley Hasselhoff's dad is David Hasselhoff, Corrine Foxx's father is Jamie Foxx, Emma Ferrer is the granddaughter of Audrey Hepburn...

The fashion show was organized by 24-year-old Andrew Warren, one of Tiffany's close friends. He told Page Six that one of the Hollywood-royalty models was unexpectedly difficult, but he wouldn't identify her, simply saying, "Only one of the 20 girls has been a diva ... I can't cater to just her needs and demands. At the end of the day, this is for charity."

Among the other young guests were Olivia Washington (daughter of Denzel Washington), Alessandra Garcia Lorido (daughter of Andy Garcia), and Daisy Lowe (daughter of Gavin Rossdale).

Not in attendance was Tiffany's boyfriend, Ross Mechanic, a current student at the University of Pennsylvania. The cute duo had a date night in late April -- Tiffany wore a pink dress with black floral accents, and Ross coordinated perfectly in a black suit and pink tie.