<human>: Eraserheads (sometimes stylized as ERAS3RHEADS) is a Filipino rock band formed in 1989. Consisting of Ely Buendia, Marcus Adoro, Buddy Zabala, and Raimund Marasigan, the band became one of the most successful, most influential, critically acclaimed, and significant bands in the history of Philippine music, leaving a legacy that resulted to them being the most commercially successful Filipino music artists of all time. Often dubbed as "The Beatles of the Philippines", they are credited for spearheading a second wave of Manila band invasions, paving the way for a host of Philippine alternative rock bands. The band released several singles, albums, and EPs that reached number one and achieved commercial success with their third album Cutterpillow, which achieved platinum status several times.

On February 28, 2007, the official launch of the book Tikman ang Langit: An Anthology on the Eraserheads (2007) was held at the second level of Powerbooks bookstore in Greenbelt 3, Makati City. The launch was accompanied by acoustic performances by Cambio (whose members include Raimund Marasigan, Buddy Zabala and Kris Gorra-Dancel), Markus Highway (Marcus Adoro's band), and Lei Bautista of Prettier Than Pink. The performers covered Eraserheads songs such as "Ligaya" (performed by Lei Bautista), "With a Smile" (also performed by Bautista) and "Magasin" (performed by Cambio with Marcus Adoro). The event was dubbed a mini-reunion of Eraserheads, with Marasigan, Zabala and Adoro performing together for the first time in four years. Buendia did not attend because of a scheduled meeting with his surgeon and the manufacturers of the stents in his heart.  Tikman ang Langit is a collection of essays about Eraserheads written by fourteen journalists who are mostly fans of the band. The book itself was compiled by Melvin Calimag and Jing Garcia, with a foreword by Eraserheads producer Robin Rivera.  Another mini-reunion happened in Saguijo on July 26, 2007. Visitors were startled as the venue's schedule listed "Eraserheads" as a performer along with Rivermaya and Teeth. Jugs Jugueta of Itchyworms and Kris Gorra-Dancel of Cambio played guitars, Zabala on bass, Marasigan on drums, Jett Pangan of The Dawn on vocals, and producer Robin Rivera played drums when Marasigan sang. They called themselves "Eraser X" during that night. Buendia and Adoro knew about the event but did not go there as they had other gigs as well. Pupil was in Hard Rock Cafe Makati, while Adoro had gigs with Markus Highway, although Pupil's bassist Dok Sergio was able to follow and played for Teeth.  Adoro, Zabala, and Marasigan did an impromptu number at the Millennia Club called "Marooned", a production of UP bands from past and present. The song Batch 88 from "Belma en Luis", was one of the songs that was jammed by the trio. CANNOTANSWER

Using a quote from the above article, answer the following question: Where did that happen?
<bot>: Greenbelt 3, Makati City.