Update: 10.4 adults 18-49, best since 2004. 26.6 million average viewers, best since 2001.
Last night the 52nd Annual Grammy Awards pulled an 18.2/27 household rating share from 8pm-11pm. That's up over 42% from last year's 12.8/20, and better still versus 2008's 12.4/19 and on pace for the best outing in six years.
I'm not giving all the credit to Taylor Swift, but she's definitely good for ratings. If those metered market numbers hold up it will be over 20 million just in households, and have a shot at surpassing 2004's 26.3 million viewers.