Rihanna's 'We found Love' is official her longest leading Hot 100 single!

With an eighth week atop the Billboard Hot 100 for “We Found Love,” featuring Calvin Harris, Rihanna links her longest command of the list.

The song’s reign bests the seven-week rules of two of her prior leaders: 2007′s “Umbrella,” featuring Jay-Z, and last year’s “Love the Way You Lie,” on which she assisted Eminem.

“Found” also takes over as the longest-leading No. 1 on the Hot 100 this year (just beating the buzzer, as this week’s Billboard charts are dated Dec. 31, 2011). The song had been tied with Adele’s “Rolling in the Deep” – the year’s No. 1 Hot 100 song – for the chart’s longest penthouse residence this year.

“Found” remains at No. 1 on the Hot 100 by logging a fifth week atop Radio Songs with 148 million all-format audience impressions (up 1%), according to Nielsen BDS. On Digital Songs, the track holds at No. 2 for a fourth frame, after five weeks at No. 1, with 149,000 downloads sold (down less than 1%), according to Nielsen SoundScan.

Here is a look at the titles to tally the most weeks atop the Hot 100 in 2011:

8 weeks: “We Found Love,” Rihanna featuring Calvin Harris
7, “Rolling in the Deep,” Adele
6, “Born This Way,” Lady Gaga
6, “Party Rock Anthem,” LMFAO featuring Lauren Bennett & GoonRock
5, “E.T.,” Katy Perry featuring Kanye West
5, “Someone Like You,” Adele
The last song to top the Hot 100 for a longer span than “Found”? Ke$ha’s “TiK ToK,” which began a nine-week domination in January 2010. (Read on for news on Ke$ha’s latest Hot 100 appearance).

Below “Found” on the Hot 100, LMFAO’s “Sexy and I Know It” racks a seventh week at No. 2. The song nets a third week at the Digital Songs summit (152,000 downloads sold, up 2%), while dipping 2-3 on Radio Songs (109 million, down 2%). While it still could command the Hot 100 going forward, “Sexy” has now spent the most time peaking at No. 2 since Lady Gaga’s “Bad Romance” (also seven weeks) in 2009-10.