Descarga Ave.

If you thought Fifth Ave. gets noisy during parades, wait until Sunday.

Some 50 singers and bands will raise the volume at the 52nd National Puerto Rican Day Parade, which this year is dedicated to Boricua music.

“We are having more musical orchestras than in previous years,” said Madelyn Lugo, the president of the parade. “I think it’s going to give it a different feel.”

Leading the musical extravaganza is the king of the parade, romantic salsa superstar Víctor Manuelle, taking a break from his tour promoting his latest album, “Muy Personal.”

“On this day, we are one people, one homeland. We are connected from here to Puerto Rico via television, via telephone,” Manuelle said. “Everyone knows what happens at the Puerto Rican parade.”

Manuelle will be joined by Puerto Rican stars from a wide range of music genres, including multi-Grammy winners Olga Tañón, Eddie Palmieri and José Feliciano.

“The parade is a beautiful thing,” said Feliciano. “I’ve tried in my own way to represent the island with dignity, with pride, and that’s for me what it means to be Puerto Rican.”

Feliciano, 63, who will be riding in a convertible up Fifth Ave., will sing two classic numbers at the Daily News stage, “En Mi Viejo San Juan” and “La Borinqueña,” Puerto Rico’s national anthem.

But probably no one is in for more of a shock than Yankee-turned-musician Bernie Williams, who is attending the city’s largest street party for the first time — and bringing his guitar along.

“I always wanted to go, but I couldn’t because of my commitment to the baseball season,” said Williams, 40. “So now that I have the time, I’m very excited and looking forward to it.

“I know it’s going to be a lot of people, it’s going to be very festive, it’s going to be a big celebration,” he added.

The parade kicks off Sunday at 11 a.m. at Fifth Ave. and 44th St. and makes its way up to 86th St.

It is dedicated to the west coast Puerto Rican city of ­Mayagüez, which is sending a contingent of 2,000 people and five oxen-pulled carts.

David Bernier, president of the Puerto Rican Olympic Committee, who, Lugo said, has “dedicated his life to the mental health of youth,” was chosen as the national grand marshal.

Bernier said he will march as a representative of the six Puerto Rican athletes who have won Olympic medals and the hundreds of others who have earned medals at the Central American and Caribbean Games and the Pan American Games.

Legendary radio personality Polito Vega, who marks 50 years on the air this year, is being honored as a parade godfather.

Other confirmed attendees are salsa singers Willie Colón and Gilberto Santa Rosa, reggaetonero Tito El Bambino and pop singer Lissette Álvarez.

“The biggest Hispanic music concert in New York City is the National Puerto Rican Day Parade,” boasted Carlos Velázquez, the parade’s marketing agent. “We have confirmed playing at the same time in the same place 46 orchestras.”

Organizers hope the added musical power will finally push the official attendance figures past the 3 million mark.

“Let it not be 2.7 or 2.8 but that we pass 3 million,” said Lugo.

“Even though the [economic] situation is difficult, we Puerto Ricans always celebrate and always party.”

mjunco@nydailynews.com