<Table> Key <Tr> <Td> </Td> <Td> Indicates best performing album of 1981 </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> Indicates best performing album of 1981 </Td> </Tr> <Table> <Tr> <Th> Issue Date </Th> <Th> Album </Th> <Th> Artist </Th> <Th> Reference </Th> </Tr> <Tr> <Td> January 3 </Td> <Td> Double Fantasy </Td> <Td> John Lennon and Yoko Ono </Td> <Td> </Td> </Tr> <Tr> <Td> January 10 </Td> <Td> </Td> </Tr> <Tr> <Td> January 17 </Td> <Td> </Td> </Tr> <Tr> <Td> January 24 </Td> <Td> </Td> </Tr> <Tr> <Td> January 31 </Td> <Td> </Td> </Tr> <Tr> <Td> February 7 </Td> <Td> </Td> </Tr> <Tr> <Td> February 14 </Td> <Td> </Td> </Tr> <Tr> <Td> February 21 </Td> <Td> Hi Infidelity </Td> <Td> REO Speedwagon </Td> <Td> </Td> </Tr> <Tr> <Td> February 28 </Td> <Td> </Td> </Tr> <Tr> <Td> March 7 </Td> <Td> </Td> </Tr> <Tr> <Td> March 14 </Td> <Td> </Td> </Tr> <Tr> <Td> March 21 </Td> <Td> </Td> </Tr> <Tr> <Td> March 28 </Td> <Td> </Td> </Tr> <Tr> <Td> April 4 </Td> <Td> Paradise Theater </Td> <Td> Styx </Td> <Td> </Td> </Tr> <Tr> <Td> April 11 </Td> <Td> </Td> </Tr> <Tr> <Td> April 18 </Td> <Td> Hi Infidelity </Td> <Td> REO Speedwagon </Td> <Td> </Td> </Tr> <Tr> <Td> April 25 </Td> <Td> </Td> </Tr> <Tr> <Td> May 2 </Td> <Td> </Td> </Tr> <Tr> <Td> May 9 </Td> <Td> Paradise Theater </Td> <Td> Styx </Td> <Td> </Td> </Tr> <Tr> <Td> May 16 </Td> <Td> Hi Infidelity </Td> <Td> REO Speedwagon </Td> <Td> </Td> </Tr> <Tr> <Td> May 23 </Td> <Td> </Td> </Tr> <Tr> <Td> May 30 </Td> <Td> </Td> </Tr> <Tr> <Td> June 6 </Td> <Td> </Td> </Tr> <Tr> <Td> June 13 </Td> <Td> </Td> </Tr> <Tr> <Td> June 20 </Td> <Td> </Td> </Tr> <Tr> <Td> June 27 </Td> <Td> Mistaken Identity </Td> <Td> Kim Carnes </Td> <Td> </Td> </Tr> <Tr> <Td> July 4 </Td> <Td> </Td> </Tr> <Tr> <Td> July 11 </Td> <Td> </Td> </Tr> <Tr> <Td> July 18 </Td> <Td> </Td> </Tr> <Tr> <Td> July 25 </Td> <Td> Long Distance Voyager </Td> <Td> The Moody Blues </Td> <Td> </Td> </Tr> <Tr> <Td> August 1 </Td> <Td> </Td> </Tr> <Tr> <Td> August 8 </Td> <Td> </Td> </Tr> <Tr> <Td> August 15 </Td> <Td> Precious Time </Td> <Td> Pat Benatar </Td> <Td> </Td> </Tr> <Tr> <Td> August 22 </Td> <Td> </Td> <Td> Foreigner </Td> <Td> </Td> </Tr> <Tr> <Td> August 29 </Td> <Td> </Td> </Tr> <Tr> <Td> September 5 </Td> <Td> Bella Donna </Td> <Td> Stevie Nicks </Td> <Td> </Td> </Tr> <Tr> <Td> September 12 </Td> <Td> Escape </Td> <Td> Journey </Td> <Td> </Td> </Tr> <Tr> <Td> September 19 </Td> <Td> Tattoo You </Td> <Td> The Rolling Stones </Td> <Td> </Td> </Tr> <Tr> <Td> September 26 </Td> <Td> </Td> </Tr> <Tr> <Td> October 3 </Td> <Td> </Td> </Tr> <Tr> <Td> October 10 </Td> <Td> </Td> </Tr> <Tr> <Td> October 17 </Td> <Td> </Td> </Tr> <Tr> <Td> October 24 </Td> <Td> </Td> </Tr> <Tr> <Td> October 31 </Td> <Td> </Td> </Tr> <Tr> <Td> November 7 </Td> <Td> </Td> </Tr> <Tr> <Td> November 14 </Td> <Td> </Td> </Tr> <Tr> <Td> November 21 </Td> <Td> </Td> <Td> Foreigner </Td> <Td> </Td> </Tr> <Tr> <Td> November 28 </Td> <Td> </Td> </Tr> <Tr> <Td> December 5 </Td> <Td> </Td> </Tr> <Tr> <Td> December 12 </Td> <Td> </Td> </Tr> <Tr> <Td> December 19 </Td> <Td> </Td> </Tr> <Tr> <Td> December 26 </Td> <Td> For Those About to Rock We Salute You </Td> <Td> AC / DC </Td> <Td> </Td> </Tr> </Table> <Tr> <Th> Issue Date </Th> <Th> Album </Th> <Th> Artist </Th> <Th> Reference </Th> </Tr>

What was the number one album in 1981