Friday Primetime Results:

* At 8 p.m. ET, "Fashion Star" (0.8/3 in 18-49, 2.9 million viewers overall) hit a five-week high in 18-49, matching its March 8 debut rating for a series high. Week to week, "Fashion Star" is up 33 percent (to a 0.8 from a 0.6). In total viewers, "Fashion Star" is also at a five-week high, with its biggest overall audience since March 8. Week to week, "Fashion Star" is up 11 percent in total viewers (2.907 million vs. 2.613 million). In the time period, "Fashion Star" is #2 among ABC, CBS, NBC and Fox in adults 18-49, adults 25-54, total viewers and other key measures.

* "Fashion Star" grew from half-hour to half-hour in 18-49 rating by 29 percent (to a 0.9 from a 0.7).

* At 9 p.m. ET, an encore telecast of "Grimm" averaged a 0.7/5 in 18-49 and 2.5 million viewers overall.

* From 10-11 p.m. ET, "Rock Center with Brian Williams" (0.8/2 in 18-49, 3.1 million viewers overall) is up week to week by 14 percent in 18-49 rating (to a 0.8 from a 0.7), to match its highest rating since March 8. "Rock Center" built on its lead-in by 14 percent in 18-49 rating and 21 percent in total viewers.

In Late-Night Metered Markets Friday night:

* In Nielsen's 56 metered markets, household results were: "The Tonight Show with Jay Leno," 2.8/7; CBS's "Late Show with David Letterman," 1.6/4 with an encore delayed by golf; and ABC's "Jimmy Kimmel Live," 1.9/5.

* In the 25 markets with Local People Meters, adult 18-49 Wednesday results were: "The Tonight Show with Jay Leno," 0.9/4; "Late Show," 0.3/2 with an encore delayed by golf; and "Jimmy Kimmel Live," 0.8/4.

* From 12:35-1:05 a.m. ET Wednesday night, ABC's "Nightline" averaged a 1.1/3 in metered-market households and a 0.5/3 in 18-49 in the Local People Meters.

* From 12:35-1:35 a.m. ET, "Late Night with Jimmy Fallon" (1.5/5 in metered-market households) beat CBS's "Late Late Show with Craig Ferguson" (1.0/3 delayed by golf). In the 25 markets with Local People Meters, "Late Night" (0.6/3 in 18-49) topped "Late Late Show" (0.3/2 delayed by golf).

* At 1:35 a.m., "Last Call with Carson Daly" averaged a 0.8/3 in metered-market households and a 0.3/2 in adults 18-49 in the 25 markets with local people meters.

NOTE: All ratings are "live plus same day" from Nielsen Media Research unless otherwise indicated.