<Tr> <Th> 10 </Th> <Td> "Shadow Dancing" </Td> <Td> Andy Gibb </Td> </Tr> <P> The following songs topped the Hot 100 for the highest total number of weeks during the 1970s . </P> <Table> <Tr> <Th> Song </Th> <Th> Artist </Th> <Th> Weeks at number one </Th> </Tr> <Tr> <Td> "You Light Up My Life" </Td> <Td> Debby Boone </Td> <Td> 10 </Td> </Tr> <Tr> <Td> "Night Fever" </Td> <Td> Bee Gees </Td> <Td> 8 </Td> </Tr> <Tr> <Td> "Tonight's the Night (Gonna Be Alright)" </Td> <Td> Rod Stewart </Td> </Tr> <Tr> <Td> "Shadow Dancing" </Td> <Td> Andy Gibb </Td> <Td> 7 </Td> </Tr> <Tr> <Td> "Bridge over Troubled Water" </Td> <Td> Simon & Garfunkel </Td> <Td> 6 </Td> </Tr> <Tr> <Td> "Joy to the World" </Td> <Td> Three Dog Night </Td> </Tr> <Tr> <Td> "The First Time Ever I Saw Your Face" </Td> <Td> Roberta Flack </Td> </Tr> <Tr> <Td> "Alone Again (Naturally)" </Td> <Td> Gilbert O'Sullivan </Td> </Tr> <Tr> <Td> "Le Freak" </Td> <Td> Chic </Td> </Tr> <Tr> <Td> "My Sharona" </Td> <Td> The Knack </Td> </Tr> </Table> <Tr> <Th> Song </Th> <Th> Artist </Th> <Th> Weeks at number one </Th> </Tr>

Artists with top 40 hits in 4 decades