Los Angeles, April 12 (IANS) “Twilight” star Robert Pattinson, who is in a serious relationship with his co-star Kristen Stewart, is being followed by singer Katy Perry.

The singer apparently tried to talk to Pattinson while he was having drinks with his girlfriend Kristen at the Chateau Marmont hotel in Los Angeles, reports showbizspy.com.
“As soon as Kristen went to the toilet, Katy made a beeline to flirt with Rob. Kristen was annoyed,” a source was quoted as saying by the website.