| Show |
Episode |
Air date |
Week
rank |
Rating/Share |
18-49
rating/Share |
Viewers
(millions) |
| 1 |
"Philadelphia Auditions" |
January 15, 2008 |
3 |
17.7 / 26 |
13.8 / 32 |
33.415 |
| 2 |
"Dallas Auditions" |
January 16, 2008 |
4 |
16.7 / 25 |
12.6 / 30 |
30.437 |
| 3 |
"San Diego Auditions" |
January 22, 2008 |
1 |
16.2 / 24 |
11.8 / 29 |
29.274 |
| 4 |
"Charleston Auditions" |
January 23, 2008 |
2 |
15.1 / 23 |
10.9 / 28 |
27.091 |
| 5 |
"Omaha Auditions" |
January 29, 2008 |
4 |
15.7 / 24 |
11.1 / 28 |
28.223 |
| 6 |
"Miami Auditions" |
January 30, 2008 |
5 |
14.4 / 22 |
10.1 / 26 |
25.573 |
| 7 |
"Atlanta Auditions" |
February 5, 2008 |
1 |
15.7 / 23 |
11.2 / 28 |
27.914 |
| 8 |
"Best of the Rest" |
February 6, 2008 |
2 |
14.6 / 23 |
10.5 / 26 |
26.278 |
| 9 |
"Hollywood Round, Part 1" |
February 12, 2008 |
1 |
16.6 / 25 |
12.3 / 29 |
29.962 |
| 10 |
"Hollywood Round, Part 2" |
February 13, 2008 |
2 |
14.3 / 22 |
9.8 / 26 |
24.752 |
| 11 |
"Top 12 Men Perform" |
February 19, 2008 |
2 |
16.4 / 25 |
11.3 / 27 |
29.006 |
| 12 |
"Top 12 Women Perform" |
February 20, 2008 |
3 |
16.1 / 24 |
11.2 / 27 |
28.885 |
| 13 |
"Top 24 Results" |
February 21, 2008 |
4 |
13.4 / 21 |
8.5 / 22 |
23.374 |
| 14 |
"Top 10 Men Perform" |
February 26, 2008 |
1 |
16.0 / 24 |
11.1 / 27 |
28.592 |
| 15 |
"Top 10 Women Perform" |
February 27, 2008 |
2 |
15.7 / 24 |
10.5 / 27 |
27.553 |
| 16 |
"Top 20 Results" |
February 28, 2008 |
3 |
14.9 / 23 |
9.1 / 24 |
26.232 |
| 17 |
"Top 8 Men Perform" |
March 4, 2008 |
1 |
15.9 / 24 |
10.6 / 26 |
28.463 |
| 18 |
"Top 8 Women Perform" |
March 5, 2008 |
2 |
16.0 / 25 |
10.4 / 27 |
28.324 |
| 19 |
"Top 12 Revealed" |
March 6, 2008 |
3 |
15.0 / 23 |
9.4 / 24 |
26.502 |
| 20 |
"Top 12 Perform" |
March 11, 2008 |
1 |
16.9 / 26 |
11.0 / 28 |
29.884 |
| 21 |
"Top 12 Results" |
March 12, 2008 |
2 |
15.8 / 24 |
10.3 / 26 |
27.127 |
| 22 |
"Top 11 Perform" |
March 18, 2008 |
1 |
15.2 / 23 |
10.4 / 26 |
27.338 |
| 23 |
"Top 11 Results" |
March 19, 2008 |
2 |
15.3 / 24 |
9.8 / 25 |
26.078 |
| 24 |
"Top 10 Perform" |
March 25, 2008 |
2 |
14.0 / 21 |
9.7 / 25 |
24.758 |
| 25 |
"Top 10 Results" |
March 26, 2008 |
1 |
15.2 / 24 |
9.8 / 25 |
25.742 |
| 26 |
"Top 9 Perform" |
April 1, 2008 |
1 |
14.7 / 23 |
9.6 / 26 |
26.117 |
| 27 |
"Top 9 Results" |
April 2, 2008 |
2 |
14.8 / 22 |
9.4 / 23 |
24.839 |
| 28 |
"Top 8 Perform" |
April 8, 2008 |
1 |
14.2 / 22 |
9.2 / 24 |
24.668 |
| 29 |
"Idol Gives Back" |
April 9, 2008 |
6 |
10.4 / 16 |
6.8 / 18 |
17.751 |
| 30 |
"Top 8 Results" |
April 10, 2008 |
2 |
12.0 / 19 |
7.0 / 19 |
20.133 |
| 31 |
"Top 7 Perform" |
April 15, 2008 |
1 |
13.9 / 22 |
8.8 / 23 |
23.646 |
| 32 |
"Top 7 Results" |
April 16, 2008 |
2 |
13.4 / 21 |
8.8 / 22 |
23.339 |
| 33 |
Top 6 Perform" |
April 22, 2008 |
1 |
14.2 / 22 |
9.0 / 25 |
24.740 |
| 34 |
"Top 6 Results" |
April 23, 2008 |
2 |
13.7 / 21 |
8.6 / 21 |
23.196 |
| 35 |
"Top 5 Perform" |
April 29, 2008 |
1 |
14.5 / 23 |
9.0 / 24 |
25.094 |
| 36 |
"Top 5 Results" |
April 30, 2008 |
2 |
13.6 / 21 |
8.4 / 21 |
22.800 |
| 37 |
"Top 4 Perform" |
May 6, 2008 |
2 |
12.6 / 20 |
8.4 / 23 |
21.755 |
| 38 |
"Top 4 Results" |
May 7, 2008 |
1 |
13.9 / 21 |
8.2 / 21 |
22.867 |
| 39 |
"Top 3 Perform" |
May 13, 2008 |
2 |
14.4 / 23 |
9.0 / 25 |
24.772 |
| 40 |
"Top 3 Results" |
May 14, 2008 |
1 |
14.6 / 22 |
9.2 / 22 |
24.863 |
| 41 |
"Top 2 Perform" |
May 20, 2008 |
2 |
15.1 / 24 |
10.1 / 28 |
27.061 |
| 42 |
Season 7 Finale" |
May 21, 2008 |
1 |
17.7 / 28 |
11.4 / 30 |
31.661 |
|