Russell previously won the award in 2015 with The Ghosts Of Altona and is the first author to win the prize twice.
Harding died aged 39, having been diagnosed with breast cancer last year.
The couple met on the set of a music video in 2016.
The song has been adopted by Scotland football fans.
Up to 50,000 people a day are expected to attend the festival.
Veteran rock star's alleged assault case in Florida is drawing to a conclusion after almost two years.
The second series of the programme will stream on BritBox from September 11.
Around 150,000 people are expected to attend the Glasgow Green festival over the weekend.
Revellers must provide proof of a negative lateral flow coronavirus test to get into the music festival.
The Oscar-winning actress is expecting her first child with New York City art dealer husband Cooke Maroney.
Around 200,000 music lovers expected at Scotland's biggest live shows for nearly two years.
McKeown's family said a corner stated a history of alcohol and drug use contributed to the star's death.
Jamie Spears said 'recent events' called into question whether Britney still needed a court to oversee her affairs.
Ian Rankin hopes readers discover ‘godfather of tartan noir’
