Caitlin (English pronunciation: /ˈkeɪtlɨn/ KAYT-lin) is a female given name. Along with the many other variants of Katherine, it is generally believed to mean "pure" because of its long association with the Greek adjective καθαρός katharos (pure), though the name did not evolve from this word. The name originated in Ireland as Caitlín [ˈkatʲlʲiːnʲ] and is the Gaelic variation of the Old French name Cateline [katlin], which was derived from Catherine, which was derived from the Ancient Greek Αἰκατερίνη (Aikaterine). Catherine is attributed to St. Catherine of Alexandria and the Greek goddess Hecate.

Historically, only the spellings Caitlín and Caitlin (anglicised) were used. In the 1970s, however, people began pronouncing the name as KAYT-lin, which led to numerous variations in spelling, including (in alphabetical order): Caitlan, Caitlin, Caitlyn, Caitlynn, Caittlyn, Catelyn, Catlyn, Caytelyn, Caytlin, Kaetlynn, Kaitlin, Kaitlyn, Kaitlyne, Kaitlynn, Katelin, Katelyn, Katelynn, Kate Lynn, Katlin, Katlyn, Katlynne, Kaytelin, Kaytelinn, Kaytlynn, and Quatlin.

Barbara Jean "Barbie" Blank (born January 15, 1987) is an American model, professional wrestler, and professional wrestling valet better known by her ring name Kelly Kelly. She is working for WWE on its Raw brand.

Blank has a background in gymnastics and cheerleading. She studied broadcast journalism, hoping to become a television anchor, and worked as a model for Venus Swimwear and Hawaiian Tropic. In 2006, Blank was signed to a contract by WWE and sent to Ohio Valley Wrestling, a WWE developmental territory. She debuted on the ECW brand in June 2006 as 'Kelly Kelly', with the character of an exhibitionist and performing a striptease. She continued her stripteases, in a segment known as Kelly's Exposé, weekly on ECW, and also became the valet of her on-screen boyfriend Mike Knox. The following year, she formed Extreme Exposé with Layla and Brooke Adams, and the trio performed a regular dance segment on ECW. They later became involved in a storyline with The Miz, which led to the dissolution of the group.

Michelle Leigh McCool (born January 25, 1980), is a American professional wrestler who is best known for her time in WWE.

McCool originally worked as a middle school teacher in Palatka, Florida. She joined WWE in 2004 after participating in the 2004 WWE Diva Search. In her initial on-screen role, she acted primarily as a personal trainer and occasional wrestler. She also acted as the manager to the team of K. C. James and Idol Stevens, collectively known as the Teacher's Pets, in 2006 after changing her on-screen character to that of a teacher. At The Great American Bash in 2008, she became the inaugural WWE Divas Champion, holding the title for approximately five months. She then won the WWE Women's Championship at The Bash in 2009, becoming the first female wrestler to have held both titles. At Night of Champions in 2010, she unified both titles becoming the first WWE Unified Divas Champion. She has held both titles on two occasions which makes her a four-time champion overall.

McCool first came to World Wrestling Entertainment (WWE) as a competitor in the 2004 WWE Diva Search, losing to Christy Hemme. Although she was eliminated, WWE signed her to a three year deal in November. Despite not winning the contest, she later debuted on SmackDown! as a fan favorite with a "personal trainer" gimmick. She wrestled in her first SmackDown! match, teaming with The Big Show to defeat Dawn Marie and René Duprée on March 3, 2005. A few months later, McCool became a part of the feud between MNM and Heidenreich when she defended Heidenreich against MNM's manager Melina's verbal attacks. In a match on June 30, Melina defeated McCool by pinning her with the illegal aid of the ring ropes as leverage. After the match, MNM performed their finisher, the Snapshot, on McCool.