Jack Nicholson at home in Los Angeles, 1969. In an issue of LIFE from March 1970, the magazine noted that Nicholson "is a rock fan who enjoys his music with a headset." time/life/getty images

Jack Nicholson and his daughter, Jennifer, on the deck of his home overlooking Franklin Canyon, Los Angeles, 1969. time/life/getty images

Jack Nicholson and director Bob Rafelson chat on the deck of Nicholson's home, Los Angeles, 1969. time/life/getty images

Jack Nicholson looks at film negatives at his home, Los Angeles, 1969. time/life/getty images

Jack Nicholson at home in 1969, taking his first piano lesson with teacher Josef Pacholczyk prior to starring in the 1970 classic, Five Easy Pieces. time/life/getty images