Katherine Nicole "Nikki" McKibbin (born September 28, 1978) is an American rock music singer-songwriter who finished third in the debut season of the reality television series American Idol. Prior to American Idol, McKibbin appeared in the first season of Popstars. In May 2007 she released her debut album, Unleashed.
In 2002, Nikki appeared on American Idol, placing third. With the exception of 1960s week, Nikki was in the bottom three every week, a total of six times (including elimination).
Immediately following her stint on American Idol, McKibbin signed with 19 Management and RCA Records. They urged her to record a country album, but she was determined to stay true to her rock roots; she rejected the idea, saying she felt she would be "selling out." The creative differences resulted in no releasable recordings being produced.
McKibbin ran Angelfire Productions, a karaoke company, but after Idol, "got out of the karaoke business" to focus on her music career.