BRITNEY NEWS Oh golly, it's almost as synthetically sweet as a Peanut Buster Parfait. Britney Spears makes a bubbly confession this month in an interview with Elle magazine: The pop princess confirms that she and fellow ex-Mousketeer Justin Timberlake are involved. ''When you're really comfortable with someone you love, the silence is the best. And that's how me and J are. When we're in a room we don't have to say anything. It's for real''.... In a recent concert, Marianne Faithfull -- once an 18 year old pop queen herself -- said she pities Britney when she reads scathing reports about her in the tabs. Though Faithfull's quick to note that she's never heard any of Spears' songs.