Porcelina of the Vast Oceans

"Porcelina of the Vast Oceans" is a song from The Smashing Pumpkins' third studio album, Mellon Collie and the Infinite Sadness. Written by Billy Corgan, the song slowly builds up before suddenly exploding at 2:13. It is also the album's longest track, at 9:21. "Porcelina" has a companion song "Medellia of the Gray Skies", which was briefly considered for Mellon Collie, but was later released as a b-side for the "Tonight, Tonight" single.

Elements of the song date back to the Siamese Dream era. The various sections of the song were recorded at different times, with different instruments and recording setups, and were digitally composited in Pro Tools. The song was played live during the Mellon Collie tour, but was dropped for the Adore and Arising! tours. It returned for the final 2000 tour, but was performed at a slower tempo and with keyboards. The arrangement also did not include the chorus of the song.

The song ranked at #14 in Rolling Stone 's reader's poll of the best Smashing Pumpkins songs.