Perry gives a sexy over-the-shoulder glance before performing in London. Plus: Lady Gaga, Ashlee, Pete & Bronx, Zac Efron and more

DOG DAYS OF SUMMER

Look whose romance is heating up! The Real Housewives of Orange County stars Gretchen Rossi and Slade Smiley get down to the business of summer on Thursday, showing some skin while they share corndogs in Santa Monica.