Nastia Liukin is a Russian-born American former artistic gymnast. She is the 2008 Olympic All-Around champion, a five-time Olympic medalist, and the 2005 and 2007 world champion on the uneven bars.
Nastia also is a four-time all-around US national champion, winning twice as a junior and twice as a senior. With nine World Championships medals, seven of them individual, Liukin is tied with Shannon Miller for the third highest tally of World Championship medals.
Johnson and Liukin were roommates and best friends when they competed for US Gymnastic Team. The pair helped their team win 10 medals, two bronze, six silver and two gold.
Johnson in an interview said in an interview that her she and Nastia are still best friends and their relationship is inseperable.