Former reality star Kelly Osbourne , no stranger to music royalty herself, shared a photo of herself and a 19-year-old Adele hanging out in 2007 in honor of Throwback Thursday yesterday. “#TBT 2007 of me & @adele hosting/starting a conga line at @bbcradio1 #BigDayOut!” the daughter of Ozzy and Sharon Osbourne captioned the pic, throwing in the hashtag #BackInTheDay.