Gigs are small events that are organized for musicians who are not very popular or are looking for a break. The crowd gathers in small numbers and generally belong to the music industry. These are smaller events that are organized in places such as restaurants, cafes, pubs, bars or college events. Gigs are performed by a number of small bands or relatively new performers who are looking for appreciation from the respective crowd.
Concerts are huge events that bring together thousands of fans for a musical. These are performed by artists that are extremely popular and who can pull a huge crowd. Concerts are mega events that are organized in places such as arena or stadiums as they require a huge capacity crowd. These are also publicized accordingly as the investors look to spend heavy amounts on marketing the event. The event usually involves performances from one or two renowned groups or solo performances.