Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: Media watchdog Ofcom is to investigate 2,750 complaints about the raunchy performances of Rihanna and Christina Aguilera on Saturday's X Factor final.

Ofcom to investigate 2,750 X Factor complaints