Piano, Viola and Clarinet Trio, 7 p.m., Pohai Nani. 247-8410.
DeShannon Higa and Keahi Conjugacion, with Dan Del Negro, Noel Okimoto, Steve Jones, Robert Shinoda, 7-10 p.m., Kapono's. 536-2161.
Battle of the DJs with DJs KSM, Racer-X, Byron the Fur, Rayne and guests, 9 p.m., Hula's Bar & Lei Stand. 923-0669.
Mardi Gras Mondays, 9 p.m., Wave Waikiki; for 18 and older. 941-0424, ext. 12.
Service Industry Night, 9 p.m.-4 a.m., Pipeline Cafe. 589-1999.
Beach Party, two rooms of hip-hop and house, 9:30 p.m.-3 a.m., Maze; for 18 and older. 921-5800.
"Steez," hip-hop culture event with breakdancing, graffiti and open mike, 10 p.m.-2 a.m., Player's in 'Aiea; for 18 and older. 488-8226.
Imai and Friends, 8 p.m.-midnight, Coconut Willy's. 923-9454.
Stardust, top 40, 8:30-11:30 p.m., Sheraton Waikiki Hotel, Hanohano Room. 922-4422.
Son Caribe, 8:30 p.m.-midnight, Sheraton Waikiki Hotel, Esprit Lanai. 922-4422.
Sabbatar, heavy metal, 8:30 p.m.-12:30 a.m., Gussie L'amour's. 836-7883.
Native Tongue, 8:30 p.m.-1 a.m., Kelley O'Neil's. 926-1777.
Stone, 9 p.m.-midnight, Jarons on Hamakua. 261-4600.
Even Steven, rock 'n' roll, 9 p.m.-2 a.m., Ohana Reef Towers, Irish Rose Saloon. 924-7711.
Afrodisiacts, presented by the Ghetto Geisha, 10 p.m., Grumpy's Bar and Grill. 528-4911.
Rock Bottom Mondays, 10 p.m., Bedroq Bar & Grill. 942-8822.