These two lovebirds can be so sneaky!

While leaving the Prince concert at the Sayers Club in Hollywood, Robert Pattinson and girlfriend pal Kristen Stewart climbed into their SUV ... hoping to not attract attention. Yeah, right!

The Twilight twosome haven't announced that their relationship is officially back on, however they've been hanging out a whole lot lately.

Hard to believe that just a few months ago, Rob and KStew split after she admitted to having a fling with married Snow White and The Huntsman director Rupert Sanders.

Wonder what Prince song is their favorite? Maybe "I Would Die 4 U."