<Table> Key <Tr> <Td> </Td> <Td> Indicates best - performing single of 2017 </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> Indicates best - performing single of 2017 </Td> </Tr> <Table> <Tr> <Th> Issue date </Th> <Th> Song </Th> <Th> Artist (s) </Th> <Th> Reference (s) </Th> </Tr> <Tr> <Th> January 7 </Th> <Td> "Starboy" </Td> <Td> The Weeknd featuring Daft Punk </Td> <Td> </Td> </Tr> <Tr> <Th> January 14 </Th> <Td> "Black Beatles" </Td> <Td> Rae Sremmurd featuring Gucci Mane </Td> <Td> </Td> </Tr> <Tr> <Th> January 21 </Th> <Td> "Bad and Boujee" </Td> <Td> Migos featuring Lil Uzi Vert </Td> <Td> </Td> </Tr> <Tr> <Th> January 28 </Th> <Td> "Shape of You" </Td> <Td> Ed Sheeran </Td> <Td> </Td> </Tr> <Tr> <Th> February 4 </Th> <Td> "Bad and Boujee" </Td> <Td> Migos featuring Lil Uzi Vert </Td> <Td> </Td> </Tr> <Tr> <Th> February 11 </Th> <Td> </Td> </Tr> <Tr> <Th> February 18 </Th> <Td> "Shape of You" </Td> <Td> Ed Sheeran </Td> <Td> </Td> </Tr> <Tr> <Th> February 25 </Th> <Td> </Td> </Tr> <Tr> <Th> March 4 </Th> <Td> </Td> </Tr> <Tr> <Th> March 11 </Th> <Td> </Td> </Tr> <Tr> <Th> March 18 </Th> <Td> </Td> </Tr> <Tr> <Th> March 25 </Th> <Td> </Td> </Tr> <Tr> <Th> April 1 </Th> <Td> </Td> </Tr> <Tr> <Th> April 8 </Th> <Td> </Td> </Tr> <Tr> <Th> April 15 </Th> <Td> </Td> </Tr> <Tr> <Th> April 22 </Th> <Td> </Td> </Tr> <Tr> <Th> April 29 </Th> <Td> </Td> </Tr> <Tr> <Th> May 6 </Th> <Td> "Humble ." </Td> <Td> Kendrick Lamar </Td> <Td> </Td> </Tr> <Tr> <Th> May 13 </Th> <Td> "That's What I Like" </Td> <Td> Bruno Mars </Td> <Td> </Td> </Tr> <Tr> <Th> May 20 </Th> <Td> "I'm the One" </Td> <Td> DJ Khaled featuring Justin Bieber, Quavo, Chance the Rapper and Lil Wayne </Td> <Td> </Td> </Tr> <Tr> <Th> May 27 </Th> <Td> "Despacito" </Td> <Td> Luis Fonsi and Daddy Yankee featuring Justin Bieber </Td> <Td> </Td> </Tr> <Tr> <Th> June 3 </Th> <Td> </Td> </Tr> <Tr> <Th> June 10 </Th> <Td> </Td> </Tr> <Tr> <Th> June 17 </Th> <Td> </Td> </Tr> <Tr> <Th> June 24 </Th> <Td> </Td> </Tr> <Tr> <Th> July 1 </Th> <Td> </Td> </Tr> <Tr> <Th> July 8 </Th> <Td> </Td> </Tr> <Tr> <Th> July 15 </Th> <Td> </Td> </Tr> <Tr> <Th> July 22 </Th> <Td> </Td> </Tr> <Tr> <Th> July 29 </Th> <Td> </Td> </Tr> <Tr> <Th> August 5 </Th> <Td> </Td> </Tr> <Tr> <Th> August 12 </Th> <Td> </Td> </Tr> <Tr> <Th> August 19 </Th> <Td> </Td> </Tr> <Tr> <Th> August 26 </Th> <Td> </Td> </Tr> <Tr> <Th> September 2 </Th> <Td> </Td> </Tr> <Tr> <Th> September 9 </Th> <Td> </Td> </Tr> <Tr> <Th> September 16 </Th> <Td> "Look What You Made Me Do" </Td> <Td> Taylor Swift </Td> <Td> </Td> </Tr> <Tr> <Th> September 23 </Th> <Td> </Td> </Tr> <Tr> <Th> September 30 </Th> <Td> </Td> </Tr> <Tr> <Th> October 7 </Th> <Td> "Bodak Yellow (Money Moves)" </Td> <Td> Cardi B </Td> <Td> </Td> </Tr> <Tr> <Th> October 14 </Th> <Td> </Td> </Tr> <Tr> <Th> October 21 </Th> <Td> </Td> </Tr> <Tr> <Th> October 28 </Th> <Td> "Rockstar" </Td> <Td> Post Malone featuring 21 Savage </Td> <Td> </Td> </Tr> <Tr> <Th> November 4 </Th> <Td> </Td> </Tr> <Tr> <Th> November 11 </Th> <Td> </Td> </Tr> <Tr> <Th> November 18 </Th> <Td> </Td> </Tr> <Tr> <Th> November 25 </Th> <Td> </Td> </Tr> <Tr> <Th> December 2 </Th> <Td> </Td> </Tr> <Tr> <Th> December 9 </Th> <Td> </Td> </Tr> <Tr> <Th> December 16 </Th> <Td> </Td> </Tr> <Tr> <Th> December 23 </Th> <Td> "Perfect" </Td> <Td> Ed Sheeran duet with Beyoncé </Td> <Td> </Td> </Tr> <Tr> <Th> December 30 </Th> <Td> </Td> </Tr> </Table> <Tr> <Th> Issue date </Th> <Th> Song </Th> <Th> Artist (s) </Th> <Th> Reference (s) </Th> </Tr>

What was the number one song on august 31st 2017