On TV: Lily Allen, Jonas Brothers, New Kids On The Block

Pop acts on television this week include:

Lily Allen, who performs on ‘The Tonight Show with Jay Leno’ (NBC) on Monday, ‘The Hour with Geoge Stroumboulopoulos’ (CBC) on Tuesday, and ‘The Ellen DeGeneres Show’ (Syndicated).

Jonas Brothers, who perform on ‘Good Morning America’ (ABC) and ‘Live with Regis and Kelly’ (ABC) on Monday, ‘The Ellen DeGeneres Show’ (Syndicated) on Tuesday, and ‘The Barbara Walters Special’ (ABC) on Oscar Sunday.

Miranda Cosgrove, who visits ‘The Ellen DeGeneres Show’ (Syndicated) on Monday.

Melanie Brown, who visits ‘The Ellen DeGeneres Show’ (Syndicated) on Tuesday.

Sara Bareilles, who performs on ‘Today’ (NBC) on Tuesday.

Janet Jackson, who appears on ‘The Tyra Banks Show’ (Syndicated) on Tuesday.

‘American Idol’ kicks off the semi-finals this Tuesday and Wednesday on FOX, while ‘Idol’ judge Paula Abdul visits ‘The Late Late Show with Craig Ferguson’ on Thursday and Randy Jackson guest co-hosts ‘Live with Regis and Kelly’ (ABC) on Friday.

Lisa Hannigan, who performs on ‘The Tonight Show’ (NBC) on Wednesday.

Drew Lachey, who visits ‘The Morning Show with Mike and Juliet’ (FOX) on Wednesday.

Lykke Li, who performs on ‘Last Call with Carson Daly’ (NBC) on Wednesday.

Joey Fatone, who visits ‘Last Call’ (NBC) on Thursday.

Anya Marina, who performs on ‘Jimmy Kimmel Live’ (ABC) on Thursday.

New Kids on the Block, who perform on ‘Live with Regis and Kelly’ (ABC) on Thursday and ‘Today’ on Friday.

Taylor Hicks, who takes part in Dating with the Stars Week on ‘Live with Regis and Kelly’ (ABC) on Thursday.

Nick Carter, who visits ‘The Ellen DeGeneres Show’ (Syndicated) on Thursday.

Kinky, who perform on ‘Jimmy Kimmel Live’ (ABC) on Thursday.

Miley Cyrus, who appears on ‘The Barbara Walters Special’ (ABC) on Oscar Sunday.