Task: Explanation
Input (English): Clifford Williams (born 14 December 1949) is a retired British musician who was a member of the Australian hard rock band AC/DC as their bassist and backing vocalist from 1977 to 2016. He had started his professional music career in 1967 and was previously in the British groups Home and Bandit. His first studio album with AC/DC was "Powerage" in 1978. The band, including Williams, was inducted into the American Rock and Roll Hall of Fame in 2003. Williams's playing style is noted for basic bass lines which follow the rhythm guitar. Williams' side projects, while a member of AC/DC, include benefit concerts and playing with Emir & Frozen Camels on their album "San" (2002) and a European tour. In 2016, Williams announced his retirement from the music industry after AC/DC's Rock or Bust World Tour. Question: The album Powerage was the first time to feature a bassist born in which year ? Answer: 1949
Output (English): Clifford Williams born 14 December 1949 is a retired British musician who was a member of the Australian hard rock band ACDC as their bassist and backing vocalist from 1977 to 2016.