t.A.T.u. also pulls off two surprising victories in our Girl Group Week fan poll!

As Billboard.com's Girl Group Week comes to a close, we wanted to reveal the results of our Girl Group Week Readers' Poll, which allowed pop fans to vote for their favorite girl group albums, songs, music videos and much more. With hundreds of thousands of votes cast in just three days, it's time to congratulate Spice Girls, 2NE1 and Fifth Harmony for emerging from the crowded field of girl groups and coming out on top in some of the biggest categories!

2NE1, the all-girl K-pop group that has recently made an impact in the States, had its album "Crush" voted as the favorite girl group album as a write-in vote, besting full-lengths by Little Mix, Spice Girls and Destiny's Child. The group also was voted the most fashionable girl group, earning 30 percent of the votes in the category.

Meanwhile, the Spice Girls' "Wannabe" was voted the fans' favorite girl group single, with the U.K. collective's only No. 1 Hot 100 single trumping favorites like TLC's "Waterfalls" and Destiny's Child's "Say My Name." And although voters dubbed the Spice ladies the most overrated girl group, Ginger, Sporty, Posh, Baby and Scary also won the category "Girl Group That Needs To Make a Comeback." Start practicing those dance moves now!

Although Fifth Harmony only won one category -- Most Promising New Girl Group -- they did so impressively, taking home a whopping 96 percent of the votes. And finally, provocative pop duo t.A.T.u. also emerged as winners from the Readers' Poll, with fans proclaiming them the most underrated girl group as well as naming their "All The Things She Said" clip as their favorite girl group music video.

Check out the full results from the Girl Group Week Readers' Poll below. And thanks for voting!

Favorite Girl Group Album

1. 2NE1, "Crush" (22%)

2. Little Mix, "DNA" (15%)

3. Spice Girls, "Spice" (12%

Favorite Girl Group Single

1. Spice Girls, "Wannabe" (23%)

2. Destiny's Child, "Say My Name" (15%)

3. Pussycat Dolls, "Don't Cha (7%)

Most Underrated Girl Group

1. t.A.T.u. (27%)

2. Orange Caramel (25%)

3. Sugababes (5%)

Most Overrated Girl Group

1. Spice Girls (37%)

2. Destiny's Child (28%)

3. Dixie Chicks (4%)

Most Promising New Girl Group

1. Fifth Harmony (96%)

2. Girls' Generation (1%)

3. 2NE1 (1%)

Girl Group That Needs To Make a Comeback

1. Spice Girls (29%)

2. Destiny's Child (23%)

3. Pussycat Dolls (14%)

Favorite Girl Group Music Video

1. t.A.T.u., "All The Things She Said" (23%)

2. Spice Girls, "Wannabe" (13%)

3. Destiny's Child, "Say My Name" (11%)

Most Fashionable Girl Group

1. 2NE1 (31%)

2. Spice Girls (16%)

3. Destiny's Child (12%)