"Feelin' So Good" is a song recorded by American singer Jennifer Lopez for her debut studio album On the 6 (1999).

Lopez sings in the chorus: "I'm feelin' so good / I knew that I would / Been taking care of myself / Like I should / Cause not one thing / Can bring me down / Nothing in this world gonna turn me around".

[4] Around the time of the single's release, Big Pun, who was slated to join Lopez and Fat Joe for a performance of the song on Saturday Night Live died after a heart attack related to weight issues.

"[2] Billboard writer Chuck Taylor observed that the song "abruptly changes gears" from the sound of her previous singles: "The result here is less Latin, more R&B-coated, and as tasty as cherry pie (...) Pumped with enough bass to bend steel, a hot-diggety backbeat, and a sunny chorus that's easy to memorize, 'Feelin' So Good' may be the hit to propel this star into the stratosphere.

"[9] Describing "Feelin' So Good" as a "mid-tempo bop" and "sunny party song", Arielle Tschinkel of the website Idolator called Big Pun and Fat Joe "the peanut butter to Lopez’s jelly.

Of course, she would not formally take the moniker until she released her sophomore album in 2001, but glimmers of the J.Lo we know and love first came out in this song and its subsequent music video.

She is seen finding money on the pavement, receiving a paycheck and buying clothes in a sale, which accounts for her good mood.

There is then an instrumental break, where Lopez and some back-up dancers perform to Manu Dibango's 1972 song "Soul Makossa".