Usher, Sade, Lil Wayne Make Billboard's 'Top Tours' List

It’s been a great year for Usher, Sade and Lil’ Wayne. According to Billboard’s “Top 25 Tours” list, the three are among the top 25 grossing concert acts of 2011.

PHOTOS: Usher’s Life in Pictures

Usher’s “OMG” tour came in at number seven on the list, with over 922,000 tickets sold and grossing just under $75 million across 73 shows.

It’s obvious that fans were eager to see Sade make her long-awaited comeback. Her world tour, which marked the end of the singer’s 10-year hiatus, took the number 10 spot and sold over 588,000 tickets, grossing a little over $53 million for 59 shows.

PHOTOS: Sade Through the Years

Rapper Lil Wayne “I Am Music II” tour came in at number 14, with 712,000 tickets sold and a gross of over $46 million across 69 shows.

A noticeably absent pop star on the list is Rihanna, who’s worldwide “Loud” tour made headlines and reportedly saw sold-out stadiums all year long. Rumors of the singer’s lagging ticket sales have plagued her tour.