Adele
Adele is a notoriously difficult person to work with off-stage, despite being a positive influence from a media standpoint. She used to request a full pack of marlboro light cigarettes, opened, and with a pink lighter included. She requested this for every show until she quit smoking in 2011.
Requesting in the Deep
On top of the pack of cigarettes, which honestly isn't THAT outrageous, Adele would also request very specific bottles of wine in vague ways. For the entirety of the "Adele 21" tour, she requested two bottles of wine in every dressing room. She requested "one bottle of the best quality Californian red wine, and one bottle of the best quality Californian Sauvignon Blanc, chilled, no Chardonnay." The only problem behind these wine requests was that she had no specifications as to what she thought was "the best quality." Instead of elaborating, she would just complain if her request wasn't fulfilled to her exact specifications, despite none of the show coordinators being mind readers.