Sometimes it's pleasant when my reality TV worlds collide. Sometimes it's scary. Scenario No. 2 happened Monday night, when former "American Idol" contestant Ace Young appeared on "The Real Housewives of Beverly Hills." Was he dating a Housewife? Performing at an elite nightclub? No. He sang at a birthday party for Taylor Armstrong's 5-year-old daughter. He wrote a special song for the occasion. It was slightly strange that he was holding a beverage during the performance, but I'll give him the benefit of the doubt and assume it was non-alcoholic. Anyway, the appearance made me do some catch-up research on Ace. Remember, he placed seventh on the fifth season of "Idol" -- the one that Taylor Hicks won. Click here for his Wikipedia page. I'll leave you with this: