Possible Clues:

• 'TiK ___' (Kesha's breakout hit)
• 'TiK ___' (Ke$ha hit)
• Ke$ha's 'Tik ___'
• 'Tik --' (2009 #1 hit for Kesha)
• Tik-___ (character from the "Land of Oz" series)