Singer Katherine McPhee, who got her first national exposure on American Idol as the season-five runner-up, is deeply enamored of her chihuahuas, Nina and Larry (above), and hates to go anywhere without them. "Sadly, I'm co-dependent on them," she said in 2010.

She's most often seen out and about with Nina, as in the second pair of pictures. So it's tempting to suppose she likes Nina best; but it's as likely Nina's bbetter behaved in potentially stressful public situation.

In the photo below, Katharine gives the paporazzi a bit of her bum, as she bends over wwith a plastic bag to clean up Nina's poo.