Jessica Simpson makes heartbreaking admission about her skewered American Idol set: Do not cry

These lips were made for singing — and that’s just what she’ll do.Jessica Simpson marked her first live television performance in 15 years during the “American Idol” Season 23 finale on Sunday.The artist, 44, opened up about how she felt after singing her 2005 version of Nancy Sinatra’s “These Boots Are Made for Walking” alongside former “Idol” contestant Josh King.

Simpson also performed her new tune “Blame Me.”“Oh, my God, I was dying,” the actress confessed to EXTRA.“I can’t even tell you how long it’s been since I’ve been that nervous.

Like, I had to put hairspray on my feet to stand still, like, not that it actually keeps me put, but, like, my feet were sweating.I’m like, my feet don’t sweat.”During the performance, Simpson had to remind herself to keep her emotions in check.“I just kept telling myself, ‘Do not cry.

Do not cry.I know this is a big moment… do not cry,'” she recalled.

“And then I see my dad, like, up in the corner and I’m like, ‘Ah, I’m going to cry.I’m going to cry.

Do not cry.Just sing your songs.

Just sing your songs.’”The fashion designer acknowledged that 15 years since her last TV performance is “a really long time.”“The last time was a Christmas song, so that’s easy,” Simpson said.“So, this is my new EP ‘Nashville Canyon’ part one, I mean, part two comes in the summer, but it is so much a part of my soul, and so to sing a song off of that I felt naked, to be honest, like, it was very bare and raw and very vulnerable.”The “Leave” singer split from her estranged husband, Eric Johnson, after 10 years of marriage in January.

Their three kids — Maxwell, 13, Ace, 11, and Birdie, 5 — were there to cheer her on on Sunday night.“I had my kids FaceTiming everybody to tell me I did a good job,” Simpson shared.“And I haven’t gotten to talk to them yet, but I’m so excited to talk to them because they’ve never seen me sing live like that.”To...