Daily News & Analysis | After Super Bowl, Katy Perry to perform at 2015 Grammys? Daily News & Analysis Pop star Katy Perry has reportedly been added to the line-up of performers for the 2015 Grammy Awards. Katy Perry performs at halftime in Super Bowl XLIX between the New England Patriots and the Seattle Seahawks Reuters. Pop star Katy Perry has ... Katy Perry to perform at 2015 Grammy Awards Katy Perry To Perform at GRAMMYs This Sunday: Report Katy Perry Will Perform At The Grammys |