MANILA, Philippines (2nd UPDATE) - At least 120,000 people gathered at the Quezon Memorial Circle for the inaugural party of President Benigno "Noynoy" Aquino III.

The party started at 4 p.m. Big names in show business kicked off the "Tagumpay ng Bayan" concert at 8:30 p.m.

Aquino arrived at the concert from the inaugural reception at the Rizal Hall in Malacañang.

The presidential party left the Palace for the concert and party after 9 p.m.

Wearing a yellow T-shirt, Aquino, arrived at the party at around 10 p.m. and was welcomed by former Quezon City Mayor Feliciano Belmonte and other supporters.

Aquino immediately sat beside his nephews, Josh and James, to watch some of the artists perform.

Around 20 of Aquino's friends, led by Liberal Party's Nereus Acosta, sang a modified version of Frankie Valli's "Can't Take My Eyes Off You."

Aquino then came up on stage for his song number and jokingly asked if he could just recite a poem instead. "Magandang gabi, po. Pinapakanta nyo raw ako? Pwede ba tula na lang?" Aquino told the crowd.

With the help of a karaoke, Aquino sang two songs, the first, Frank Sinatra/Frankie Valli's "Watch What Happens," apparently for his girlfriend, Valenzuela City councilor Shalani Soledad, who was seated beside Kris in front of the stage.

Aquino's girlfriend Shalani Soledad and presidential sister Kris Aquino-Yap

Soledad took pictures of President Aquino using her cell phone as he was performing the love song. Kris, on the other hand, showed an unhappy face in response to her brother's poor singing.

In response to shouts of "more, more," President Aquino then performed Freddie Aguilar's barkada song, "Estudyante Blues."

His friends later came on stage to help him sing the song.

Co-hosts Anne Curtis, Vhong Navarro, and Mariel Rodriguez then sought photo opportunities with the President before letting him go.

A fireworks display capped the whole-day event at midnight.

After the concert and street party, President Aquino was to return to his residence in Times Street, Quezon City.

Among the performers at the concert were Gary Valenciano, Regine Velasquez, Ogie Alcasid, Kim Chiu and Gerald Anderson, Gabby Concepcion, Pokwang and Pooh.

Other performers included Kontragapi of UP, Mindanao Pakaradian from the Autonomous Region in Muslim Mindanao, and Republika. They expressed their feelings of hope for the nation, following Aquino's historic election, through cultural performances.

APO Hiking Society's Jim Paredes and composer Ryan Cayabyab were also at the concert.

International star and Journey front man Arnel Pineda belted a number. - With reports from Ginger Conejero, Jenny Reyes, and Gretchen Malalad, ABS-CBN News