'We Found Love,' the longest-reigning No. 1 single of Rihanna's career, rules the Billboard Hot 100 for the second consecutive week and 10th week overall.

The song's 10 weeks at No. 1 are the most for any song by a female artist since Beyonce's 'Irreplaceable' began a 10-week run in 2006, and it exceeds the seven weeks at the top for Rihanna's previous biggest hits, 'Umbrella' and 'Love the Way You Lie.' 'We Found Love' is one of three Rihanna songs in the Top 40 this week, along with 'You Da One' and 'Take Care' with Drake.

Rihanna may not stay in the countdown penthouse for long, because Adele's 'Set Fire to the Rain' has raced up to No. 2 and was the biggest gainer in terms of radio airplay last week. Flo Rida rides up to No. 3 with 'Good Feeling,' while Bruno Mars holds No. 4 with 'It Will Rain.'

Meanwhile, Katy Perry looks like she's going to fall short in her quest to score an unprecedented sixth No. 1 single from one album. Despite its bargain-basement price of 69 cents on iTunes, 'The One That Got Away' remains stuck at No. 6 after a peak of No. 3. But Perry is not giving up yet -- she unveiled a new acoustic version of the song earlier this week.