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Celebrity Birthdays, April 4

April 4th, 2007 3:00am EDT
Heath LedgerHappy Birthday to Britney's little sis Jamie Lynn Spears (1991), actress Natasha Lyonne (1979), "Brokeback Mountain" star Heath Ledger (1979), biker Dave Mirra (1974), illusionist David Blaine (1973), "Battlefield Earth" actor Barry Pepper (1970), actor/rehab frequenter Robert Downey Jr. (1965), "The Matrix" trilogy actor Hugo Weaving (1960), TV producer David E. Kelley (1956), actress Christine Lahti (1950), "Poltergeist" star Craig T. Nelson (1944), "Psycho" star Anthony Perkins (1932; d. 1992), prolific writer Maya Angelou (1928), composer Elmer Bernstein (1922; d. 2004), and blues legend Muddy Waters (1915; d. 1984).