Alison Irwin was a houseguest in Big Brother 4 and later appeared in Big Brother All Stars. She was the runner-up and won $50,000 losing to Jun Song in Big Brother 4. Her ex-boyfriend Justin Giovinco was also in the house, as part of the X-Factor twist. She was the first person to be evicted from Big Brother All Stars, and placed fourteenth.
Alison Irwin (born August 7, 1980, in was a 22 year old industrial executive from Lincoln Nebraska in Memphis Tennessee
After Irwin's appearance on All-Stars, she competed in the fifth season of the CBS reality TV show The Amazing Race along with her boyfriend Donny Patrick. The two were eliminated on the second leg after previously placing 1st. Irwin became the fi rst contestant on a previously aired show to compete in The Amazing Race.
Alison is the first female in Big Brother history to be vetoed, as well as the first player ever to veto oneself.
Alison is the first female houseguest to be vetoed by another houseguest.
Alison became the first HouseGuest to make it to the finale and never be a nominee on eviction night.
Alison became the first female HouseGuest to win the Power of Veto twice.
In her original season, the three times the Power of Veto was used were on Alison.
Alison is the first HouseGuest to win the POV before nominations were made. This would happen again in Big Brother 14, when Ian won a POV before Frank made his nominations, as a consequence of Frank opening Pandora's Box.
Alison and Donny in their promotion picture for the Amazing Race 5
Alison and her boyfriend, Donny, competed on The Amazing Race 5. They won the first leg(due to two other teams making a mistake), but were the second team eliminated, placing tenth.
