transportation. On large tours, the road crew may also include an accountant, stage manager, bodyguard, hairdressers, makeup artists and catering staff. Local crews are typically hired to help move equipment on and off stage. On a small tour with less financial backing, all of these jobs may be handled by just a few roadies or by the musicians themselves. Bands signed with small "indie" labels and bands in genres such as hardcore punk are more likely to do tours without a road crew, or with minimal support. Artist management, representation and staff Artists such as singers and musicians may hire several people from other fields to assist them with their career. The artist manager oversees all aspects of an artist's career in exchange for a percentage of the artist's income. An entertainment lawyer assists them with the details of their contracts with record companies and other deals. A business manager handles financial transactions, taxes, and bookkeeping. Unions, such as AFTRA and the American Federation of Musicians in the U.S. provide health insurance and instrument insurance for musicians. A successful artist functions in the market as a brand and, as such, they may derive income from many other streams, such as merchandise, personal endorsements, appearances (without performing) at events or Internet-based services. These are typically overseen by the artist's manager and take the form of relationships between the artist and companies that specialize in these products. Singers may also hire a vocal coach, dance instructor, acting coach, personal trainer or life coach to help them. Emerging business models In the 2000s, traditional lines that once divided singers, instrumentalists, publishers, record companies, distributors, retail and consumer electronics have become blurred or erased. Artists may record in a home studio using a high-end laptop and a digital recording program such as Pro Tools or use Kickstarter to raise money for an expensive studio recording session without involving a record company. Artists may choose to exclusively promote and market themselves using only free online video sharing services such as YouTube or using social media websites, bypassing traditional promotion and marketing by a record company. In the 2000s, consumer electronics and computer companies such as Apple Computer have become digital music retailers. New digital music distribution technologies and the trends towards using sampling of older songs in new songs or blending different songs to create "mashup" recordings have also forced both governments and the music