Air date: 2015-01-07

Runtime: 85 min

Air date: 2015-01-08

Runtime: 85 min

Hopefuls try to impress the judges as auditions continue.

Air date: 2015-01-14

Runtime: 85 min

Vocalists in Kansas City, Mo., audition for the judges in hope of making it to the next round.

Air date: 2015-01-15

Runtime: 85 min

Vocalists in New York -- the hometown of judge Jennifer Lopez -- audition in hope of making it to the next round; guest judge Adam Lambert.

Air date: 2015-01-21

Runtime: 85 min

Another round of vocalists audition for the judges in hope of making it to the next round.

Air date: 2015-01-22

Runtime: 85 min

The auditions continue as more vocalists try to impress the judges in hope of making it to the next round.

Air date: 2015-01-28

Runtime: 85 min

The auditions continue.

Air date: 2015-01-29

Runtime: 85 min

The auditions continue.

Air date: 2015-02-04

Runtime: 85 min

Hollywood Week opens with the singers forming lines of 10 and performing for the judges.

Air date: 2015-02-05

Runtime: 85 min

Hollywood Week continues.

Air date: 2015-02-11

Runtime: 85 min

Hollywood Week continues as the contestants perform solos.

Air date: 2015-02-12

Runtime: 85 min

Hollywood Week continues and the Top 48 singers are revealed.

Air date: 2015-02-18

Runtime: 85 min

The contestants perform in a showcase at the House of Blues; some of the contestants learn their fate.

Air date: 2015-02-19

Runtime: 85 min

The final performances take place at the House of Blues; the judges finish selecting the top 24 contestants.

Air date: 2015-02-25

Runtime: 85 min

The top 12 guys perform in hope of winning America's votes.

Air date: 2015-02-26

Runtime: 85 min

The top 12 girls perform in hope of earning America's votes.

Air date: 2015-03-04

Runtime: 85 min

The result of last week's vote and the Top 8 Girls perform.

Air date: 2015-03-05

Runtime: 85 min

The result of last week's vote and the Top 8 Boys perform.

Air date: 2015-03-11

Runtime: 85 min

The 16 remaining contestants are whittled down to the Top 12 finalists.

Air date: 2015-03-12

Runtime: 85 min

The Top 12 perform for America's votes.

Air date: 2015-03-19

Runtime: 85 min

The results of last week's vote and the Top 10 perform.

Air date: 2015-03-25

Runtime: 85 min

The result of last week's vote and the Top 9 perform.

Air date: 2015-04-01

Runtime: 85 min

The result of last week's vote and the Top 8 perform.

Air date: 2015-04-08

Runtime: 85 min

The result of last week's vote and the Top 7 perform.

Air date: 2015-04-15

Runtime: 85 min

The result of last week's vote and the Top 6 perform.

Air date: 2015-04-22

Runtime: 85 min

The result of last week's vote and the Top 5 perform.

Air date: 2015-04-29

Runtime: 85 min

The result of last week's vote and the Top 4 perform.

Air date: 2015-05-06

Runtime: 85 min

The result of last week's vote and the Top 3 perform.

Air date: 2015-05-13

Runtime: 85 min

The final performance show of the season gives America one last chance to vote for the winner.

Air date: 2015-05-14

Runtime: 85 min

A night of featured performances climaxes with the revelation of this year's American Idol winner.