Primetime Ratings: ‘Idol' Final Performance Show Draws 23 Million

‘Glee' follows with second-place finish to ‘Dancing' finale at 9

The final American Idol performance show of the season drew big ratings as expected for Fox, leading the network to Tuesday's primetime win. Fox's highly promoted Glee debuted with a 4.3/11 rating, behind the finale of Dancing With the Stars at 9.

Idol earned a 8.3/24 at 8 p.m., dominating the competition, while second place went to CBS at 3.3/10 for the season ender of NCIS. A re-run of Dancing With the Stars came in at 1.8/5 for ABC. A re-run of Most Outrageous Moments on NBC came in at 0.9/3. The CW was fifth at 0.7/2 for Reaper.

Olympic gold medalist Shawn Johnson edged out Frenchman Gilles Marini for the Dancing With the Stars victory. The show earned a 4.6/12 and 18.7 million viewers. Glee followed up with a 4.3/11 and 10.7 million viewers. Glee took first place in the 9-9:30 half hour with a 5.0/13 but fell to third at 3.7/9 in the second half-hour, losing more than 3.5 million viewers from one half-hour to the next. CBS was third for the hour at 3.7/10 for The Mentalist season finale. NBC's Law & Order: SVU re-run came in at 1.2/3. The CW was fifth at 1.1/3 for the season finale of 90210.

The second hour of the Dancing finale drew a 5.6/15 and 21.6 million viewers at 10. CBS was next at 2.5/7 with the season finale of Without A Trace. Another re-run of Law & Order: SVU was third at 2.4/7.

Overall Fox topped the night at 6.3/17 with 16.9 million viewers. ABC was next at 4.0/11 with 15.9 million tuning in. CBS was third at 3.2/9. NBC finished fourth at 1.5/4. The CW was fifth with a 0.9/2.