Exclusive: Lee DeWyze Talks Ellen DeGeneres' 'Idol' Departure
AMERICAN IDOL finalists Crystal Bowersox and Lee DeWyze perform a duet from Dodger Stadium which will air during FOX's special Major League Baseball prime time broadcasts. Ray Mickshaw/FOX

One Tuesday night TV mystery (sort of) down, two to go.

Sunday night (May 23), ABC aired the heartwarming "Lost" series finale, a satisfying two-and-a-half hours, even if many of the island's questions remain unanswered. (It's a good bet that executive producers Carlton Cuse and Damon Lindelof would remain mum even if interrogated by Sayid).

June 8, we'll find out whether New Directions can emerge victorious at the long-awaited Regionals competition when Fox airs the Journey-centric season finale of "Glee."

Before, however, learning the results of the tutelage of Mr. Shue, the "American Idol" season of pants (on the ground) and (Mama)sox wraps tomorrow night (May 26).

For the first time since 2007, the top two "Idol" finalists comprise a male-vs.-female showdown. Crystal Bowersox and Lee DeWyze mark the fifth such battle of the sexes, with women taking three of the first four matchups:

Year, Winner, Runner-Up
2007: Jordin Sparks, Blake Lewis
2006: Taylor Hicks, Katharine McPhee
2005: Carrie Underwood, Bo Bice
2002: Kelly Clarkson, Justin Guarini

Since the series' launch in 2002, it's notable that female "Idol" alumnni have outshined their male counterparts in certain key sales and chart comparisons. (Billboard's ranking of the top 24 "Idol" contestants, encompassing album sales, track sales and radio airplay, reveals similar results, as women claim three of the top four spots: (1) Clarkson, (2) Underwood and (4) Sparks).

Ahead of season nine's coronation, here is a look at chart dominance displayed by female "Idol" graduates.

Best-selling "Idol" acts by U.S. career album sales, according to Nielsen SoundScan:

Underwood and Clarkson are the only artists discovered on "Idol" whose total album sales each eclipse 10 million:

11.5 million, Carrie Underwood
10.6 million, Kelly Clarkson
5.7 million, Chris Daughtry (with Daughtry)
4.9 million, Clay Aiken
2.5 million, Ruben Studdard

Best-selling "Idol" acts by U.S. career digital track sales, according to SoundScan:

Clarkson and Underwood (in reverse order) also lead the list of "Idol" acts with the most songs individually downloaded:

16.2 million, Kelly Clarkson
15.1 million, Carrie Underwood
10 million, Chris Daughtry (with Daughtry)
9.1 million, Jordin Sparks
3.9 million, David Cook