The LSU Tigers haven't been ranked number one since January of 2008 after they beat Ohio State to win the national championship of college football.

But after LSU dismantled West Virginia last night 47-21, they take over the #1 ranking in college football.

After completing a brutal September schedule that included three road wins against ranked opponents, the LSU football team (4-0, 1-0 SEC) moved to No. 1 in the AP Top 25 on Sunday.

The Tigers also moved into a tie for No. 2 in the USA Today Coaches Poll.

LSU jumped No. 1 Oklahoma into the top spot in the writers' poll, as the Tigers earned 42 of 60 first-place votes. The Sooners were No. 2, followed by Alabama, Boise State and Oklahoma State.

LSU was last ranked No. 1 in the AP Top 25 in January of 2008 after winning the 2007 BCS National Championship game against Ohio State.

After flip-flopping with SEC rival Alabama in the opening weeks of the coaches' poll, the schools were tied in the week 4 poll.

The Tigers received 20 of 59 first-place votes from the coaches, while No. 1 Oklahoma held the top spot with 32. Alabama had seven first-place votes after a home victory over Arkansas on Saturday.

On Saturday night, LSU opened a 13-0 lead at West Virginia and scored the game's final 20 points to beat the then-16th ranked Mountaineers, 47-21.

The victory came on the heels of a 19-6 Thursday night win at then-No. 25 Mississippi State and a season-opening victory over No. 2 Oregon in the Cowboys Classic.

LSU returns to Tiger Stadium on Saturday when the Tigers welcome Kentucky for an 11:21 a.m. CT kickoff on the SEC Network.

The AP Top 25

By The Associated Press

1. LSU (42) 4-0 1,471 2

2. Oklahoma (12) 3-0 1,422 1

3. Alabama (5) 4-0 1,413 3

4. Boise St. (1) 3-0 1,280 4

5. Oklahoma St. 4-0 1,209 7

6. Stanford 3-0 1,205 5

7. Wisconsin 4-0 1,177 6

8. Nebraska 4-0 991 9

9. Oregon 3-1 985 10

10. South Carolina 4-0 950 12

11. Virginia Tech 4-0 883 13

12. Florida 4-0 820 15

13. Clemson 4-0 744 21

14. Texas A&M 2-1 734 8

15. Baylor 3-0 659 17

16. South Florida 4-0 585 18

17. Texas 3-0 466 19

18. Arkansas 3-1 434 14

19. Michigan 4-0 417 22

20. TCU 3-1 338 20

21. Georgia Tech 4-0 298 25

22. West Virginia 3-1 280 16

23. Florida St. 2-2 239 11

24. Illinois 4-0 179 24

25. Arizona St.3-1 112 NR

USA Today/Coaches Poll

1 Oklahoma (32) (3-0) 1434 1

t2. LSU (20) (4-0) 1404 3

t2. Alabama (7) (4-0) 1404 2

4 Stanford (3-0) 1225 5

5 Boise State (3-0) 1223 4

6 Oklahoma State (4-0) 1172 6

7 Wisconsin (4-0) 1156 7

8 Nebraska (4-0) 1040 9

9 South Carolina (4-0) 976 10

10 Virginia Tech (4-0) 935 11

11 Oregon (3-1) 914 13

12 Florida (4-0) 817 15

13 Texas A&M (2-1) 681 8

14 South Florida (4-0) 631 17

15 Clemson (4-0) 598 22

16 Baylor (3-0) 528 19

17 Texas (3-0) 525 18

18 Arkansas (3-1) 432 12

19 Michigan (4-0) 414 21

20 TCU (3-1) 364 20

21 Georgia Tech (4-0) 333 24

22 Illinois (4-0) 181 not ranked

23 West Virginia (3-1) 158 16

24 Florida State (2-2) 157 14

25 Michigan State (3-1) 153 23

Source: LSUSports.net